"How Halogens And Alkali Metals Are Extremely Reactive Whereas Noble Gases Are Not Reactive" Essays and Research Papers

How Halogens And Alkali Metals Are Extremely Reactive Whereas Noble Gases Are Not Reactive

Metals and Halogens reactions Elements such as fluorine, chlorine, bromine, iodine, and astatine belong to Group 7, Halogens. At room temperature, fluorine is a yellow gas, chlorine is a pale green gas, bromine is a red liquid, and iodine is a purple solid. Astatine is a radioactive element, therefore it exists only in small amounts. All the halogens exist in diatomic molecules. They have high ionization energies and are the most electronegative elements. Their electron configuration ns2 np5 make...

Chlorine, Electronegativity, Halogen 1380  Words | 4  Pages

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Atoms Molecules And Elements Paper

that element. First we can learn about how halogens and alkali metals are extremely reactive, where as noble gases are non reactive. Secondly we have to compare the properties of molecules formed from atoms in similar families versus . Lastly, we can learn about what is meant by the electronic structure of atoms and how knowing the electronic structure of the atoms aid in the prediction of chemical reactions. Halogens and Alkali Metals compared to Noble gases “In the 1870’s, the Russian chemist...

Atom, Chemical element, Chemistry 763  Words | 5  Pages

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Alkali Metals

Alkali Metals Introduction Alkali metals refer to six elements belonging to the Group IA of the long form of the Modern Periodic Table, viz. Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs) and Francium (Fr). Fr is a radioactive element. These elements are called so because they form strongly alkaline oxides and hydroxides. Electronic Configuration of Alkali Metals Each of the alkali metals has one electron in their outermost (valence) shell, which is just outside an inert...

Chlorine, Lithium, Potassium 1243  Words | 6  Pages

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Lab 1 Reactivity of Metals

Lab: Reactivity with Metals Purpose: The purpose of this lab is to determine the reactivity of various metals with water as well as potentially acid and be able to place them in order of reactivity. Hypothesis: If we test the reactivity of alkali metals, alkaline earth metals and period 3 metals, then the least reactive would be aluminium, then magnesium followed by calcium, lithium, sodium and the most reactive would be potassium, because recalling...

Alkali, Alkali metal, Alkaline earth metal 1614  Words | 6  Pages

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Chemical Properties of Metals, Non-Metal

Chemical Prperties of Metals Most metals are chemically reactive, reacting with oxygen in the air to form oxides over changing timescales (for example iron rusts over years and potassium burns in seconds). The alkali metals react quickest followed by the alkaline earth metals, found in the leftmost two groups of the periodic table. Examples: 4Na + O2 → 2Na2O (sodium oxide) 2Ca + O2 → 2CaO (calcium oxide) 4Al + 3O2 → 2Al2O3 (aluminium oxide) The transition metals take much longer to...

Carbon, Chemical element, Chemistry 808  Words | 3  Pages

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History of the Periodic Table

of the Periodic Table 1. Explain how scientific observations led to the development of, and changes to, the periodic table. Dmitri Mendeleev- first periodic table, organized 63 known elements according to properties, organized into rows and columns. He wrote names, mass and chemical properties on each. Julius lothar Meyer- independently worked in German , similar to Mendeleev Henry Gwyn Jeffrey’s Moseley: worked with Ernest Rutherford experimented with 38 metals, he found that the positive charge...

Atom, Periodic table 2160  Words | 9  Pages

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Low-Impact Fiber-Reactive Dyes

Low-Impact Fiber-Reactive Dyes The sustainability of our environment is crucial in saving the livelihood of the people and the planet. Since we are all interdependent, we will all have to do our part in sustaining our environment for the future. We should always be questioning and doing more about it rather than just talking or ignoring the facts. Most of us do not realize the excessive use of resources we have taken advantage of over the years. Generations past have exploited our planet which...

Dye, Dyeing, Dyes 1304  Words | 5  Pages

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Compare and Contrast Economic, Social, and Political Developments in the North and South Between 1800-1860.

Color Coding the Periodic Table Student Information Sheet The Periodic Table is a list of all the known elements. It is organized by increasing atomic number. There are two main groups on the periodic table: metals and nonmetals. The left side of the table contains elements with the greatest metallic properties. As you move from the left to the right, the elements become less metallic with the far right side of the table consisting of nonmetals. The elements in the middle of the table are called...

Metalloid, Period 2 element, Period 3 element 929  Words | 3  Pages

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Element Families

Lanthanide Series Noble Gases Halogen Chalcogen Nitrogen Boron Carbon Transition Metals Earth Alkali Alkali Columns on the Periodic Chart are referred to as _________ of elements. -Families Families of Elements are similar in at least what three ways? -Charge, Electron configuration, Electron dot diagram, also they have similar properties What are the 3 properties of the Alkali family? -Soft, Shiny, Very reactive Compare the Alkali's to the Alkali Earth metals. What is the difference...

Atom, Carbon, Chemical element 596  Words | 3  Pages

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Biomedical Sciences

properties of both metals and non-metals. Some are semi-conductors and can carry an electrical charge making them useful in calculators and computers The Metalloids are: Boron Silicon Germanium Arsenic Antimony Tellurium Polonium Elements classified as Alkali Metals The 6 elements classified as "Alkali Metals" are located in Group 1 elements of the Periodic Table. Elements classified as Alkali Metals are very reactive metals that do not occur freely in nature. Alkali metals are soft, malleable...

Electronegativity, Group, Halogen 569  Words | 4  Pages

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The Period Table Lol This Site Is Fail and Rip Off Boooooooooooooo Never Buy U Have to Submit a Frikin Essay Lol Fail

except the transition metals. The group number show the number of electrons on the outer most shell. Group 0 does not apply to this rule because they are the noble gases, they however have the outermost electron shell full. Oxygen (O) will have 6 electrons in its outer shell. How is the Periodic Table Split? Non-metals: These are the elements on right side of line, as well as hydrogen, which is, which is in-group 1 because it only has 1 electron on its outer shell. Non-metals cannot conduct electricity...

Atom, Atomic number, Chemical element 1434  Words | 4  Pages

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Chemistry Alkali Metals

The alkali metals are found in group 1 of the Periodic table. They are very reactive metals and do not occur freely in nature. Alkali metals are malleable, ductile, and are good conductors of heat and electricity. Alkali metals can also explode if they are exposed to water. The Alkali metals are: lithium, sodium, potassium, rubidium, cesium, and francium. Lithium The mineral petalite, which contains lithium, was discovered by a Brazilian scientist named Jose Bonifacio towards the end of the...

Alkali metal, Chemical element, Electrolysis 682  Words | 3  Pages

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To Compare the Reactivity of Various Metals by Observing Their Reaction with Hydrochloric Acid.

Aim: To compare the reactivity of various metals by observing their reaction with hydrochloric acid. Materials: 2 M hydrochloric acid Detergent Test tubes and test tube rack 0.5 pieces of magnesium, aluminium, iron, zinc and cooper Sand paper Ruler Timer Bench mat Method: ‎1. The surface of the magnesium was cleaned with a piece of sandpaper 2. The Magnesium was placed into a test tube 3. Three Drops of detergent were added to the test tube 4. 2cm of hydrochloric acid was added...

Alkali metal, Chemical element, Electrolysis 603  Words | 3  Pages

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Atoms Molecules Elements

group 1A of the periodic table are considered alkali metals. Alkali metals are similar in that each of them has only one atom in the outermost shell and they are very reactive when combined with other elements. All elements in column 7A are halogens. Halogens are also highly reactive oxidizing agents that are called “salts”. All halogens have 7 electrons in their outer shells, giving them an oxidation number of -1 (Bodner Research Web, n.d.). Noble gases can be found in Column 8A. These elements are...

Atom, Chemical element, Chemistry 739  Words | 4  Pages

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Representative Gases & Properties of Gases

Theory of gases.</i><br><br>a) Gases consist of large numbers of tiny particles. These particles, usually molecules or atoms, typically occupy a volume about 1000 times larger than occupied by the same number of particles in the liquid or solid state. Thus molecules of gases are much further apart than those of liquids or solids.<br><br>Most of the volume occupied by a gas is empty space. This accounts for the lower density of gases compared to liquids and solids, and the fact that gases are easily...

Carbon dioxide, Gas, Ideal gas 1677  Words | 4  Pages

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Formal Lab Report Rates of Reaction Alkali Metals and Alkaline Earth Metals

rates of reaction of Alkali metals and Alkaline Earth meatals are compared in this lab. The pH of each of the resulting metal solutions are tested and the products of the reaction between calcium and water is discovered. The tested elements are sodium, lithium, potassium and calcium and each of them were placed in a beaker filled with water. The resulting solutions pH levels were tested with litmus paper. There were more steps for caclium because it is the only Alkaline Earth metal. For calcium, the...

Alkali, Alkali metal, Alkaline earth metal 1638  Words | 6  Pages

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Chemistry element family assignment

 Periodic Table Families Assignment Roderick Gerein Chem 20 February 5th 2013 Alkali Metals These particular elements were given the name "Alkali" because they react with water to form hydroxide ions, creating a basic solution (pH>7). Solutions that have a pH greater than 7 are called alkaline solutions.  Alkali Metals are; 1- Very reactive 2- Very soft and silver in colour 3- Have low boiling and melting points Lithium- Often used in rechargeable batteries including cell...

Alkali, Alkaline earth metal, Chemical element 463  Words | 3  Pages

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Attachment and Reactive Attachment Disorders

 Psych 200 February 10, 2014 “Attachment and Reactive Attachment Disorders” According to Smith, Saison, and Segal the word attachment is defined as the deep connection established between a child and caregiver that profoundly affects that child’s development and their ability to express emotions and develop relationships (Help.org). Whereas attachment is easily defined it isn’t so easy to define attachment disorders. Experts have not agreed on a definition for the term “attachment disorder...

Attachment disorder, Attachment theory, Attachment therapy 2152  Words | 8  Pages

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The Importance of the Predoic Table

into subcategories Metals, Nonmetals, and Metalloids. The Periodic Table is one of the most useful tools of chemistry. The periodic table on the left separates the elements into three groups the Metals, Nonmetals and Metalloids. Most elements are metals. They are typically shiny, good conductors of heat and electricity, have a high density, and only melt at high temperatures. Metals are ductile and malleable, so their shape can be easily changed into thin wires or sheets. Metals will corrode, gradually...

Alkali metal, Chemical element, Chemistry 855  Words | 3  Pages

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metal-metal displacement

Oxidation & Reduction I. Metal-Metal Ion Displacement II. Halogen Displacement Reactions INTRODUCTION A series of experiments had been conducted to determine the order of displacement strengths of the metals and halogen chosen for the experiments. A displacement reaction is a reaction in which one element(metal or non-metal) displaces another element(metal or non-metal) from its salt solution. In the displacement reaction of metals, the more electropositive metal will displace the less...

Bromine, Chlorine, Halogen 1485  Words | 6  Pages

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How the Blast Furnace Works

There are a few methods to extract metals from its ores. The main ones are electrolysis (the decomposition of a compound using electricity) and heating with carbon or carbon monoxide (or called the “Blast Furnace”). Some other metals like Silver and Gold occur naturally in the Earth’s crust as “native metals”. The method to extract the metal depends on its place in the Reactivity Series (how reactive the metal is). The more reactive the metal, the more difficult it is to extract. Thus electrolysis...

Aluminium, Carbon dioxide, Carbon monoxide 1237  Words | 5  Pages

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Chemistry- Metals

TOPIC 2 Metals The History of Metals * Uses of metals through history: * Copper Age (3200-2300 BCE) – copper and tin were most common metals, and were used for ornaments, weapons and tools. * Bronze Age (2300-700 BCE) – copper, tin and bronze were used for tools, weapons and transport. They produced bronze by heating copper and tin with charcoal. * Iron Age (1000 BCE – 1 CE) – iron steel and lead was used for tools, weapons and pipes. Iron is much harder than bronze. ...

Aluminium, Chemical element, Copper 1828  Words | 6  Pages

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Uses of Noble Gases

Noble Gas | Uses | Property | Argon | Light bulbs | Doesn’t react with the metal filament | Helium | Used with O2 for deep sea dives | Low solubility of helium in the blood. | Helium | To inflate the tyres of large aircraft | Non-flammable | Helium | To fill airships and weather balloons | Low density, does not burn | Neon | In advertising signs because it glows red when electricity passes | Conductor of electricity at high voltage | Krypton/Xenon | In lamps used in photographic flash...

Argon, Gas, Helium 816  Words | 3  Pages

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Periodic Table Notes

Properties * Alkali Metals – Group 1 Metals * Alkaline Earth Metals – Group 2 Metals * Transition Metals * Lanthanide Series – Rare Earth * Actinide Series – Rare Earth * Halogens – Group 17 * Noble Gases – Group 18 Families/Groups * Vertical columns on the periodic table * Properties of elements are similar when moving down a group * Family 1: (Alkali Metals) * One valence electron (gives up this electron when bonding) * Very reactive with water...

Atom, Atomic number, Chemical element 669  Words | 4  Pages

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Sample Written Report

the elements in order of increasing proton number to show the similarities of chemical elements. Therefore elements with structural similarities & atomic number are placed together. These elements can be placed into two different categories, metals & non-metals. The early years of the 19th century witnessed a rapid development in chemistry. The art of distinguishing similarities and differences among atoms prompted scientists to devise a way of arranging the elements. Relationships were discerned...

Alkali metal, Atomic mass, Atomic number 1105  Words | 5  Pages

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Extraction of Metals

Extraction of metals The History of Metals. Metals have been used by people for many thousands of years. Gold and silver, found as native metal, were used both as jewellery and as a status symbol - nothing new there. These metals were known in the Stone Age, but gold and silver are too soft to be used as tools. The first really useful metal to be discovered was bronze. This began the Bronze Age. Bronze was used extensively for tools and weapons in Asia and Africa from 4,500 B.C. (6,500 years...

Aluminium, Copper, Iron 2043  Words | 6  Pages

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Reactive Attachment Disorder

Reactive Attachment Disorder Defined Reactive Attachment Disorder can be defined as a rare condition where infants and children lack the healthy bond with parents and/or caregivers. This lack of developmentally appropriate social responses may permanently alter the child's developing brain, and result in a lifelong condition. History- Rene Spitz noticed when children are in orphanages their debilitating mental condition. The children seemed unresponsive to interaction and often cried softly...

Attachment theory, Attachment therapy, Developmental psychology 665  Words | 3  Pages

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The paper

around the sun? HW: 2. Explain how emission spectra of gasses helped scientists to determine electrons traveled in energy levels. Energy Level Diagram CW: 3. Draw the energy level diagram for Iron. 4. Draw the energy level diagram for Sulfur. 5. Draw the energy level diagram for Argon 6. Draw the energy level diagram for Neon. 7. Using what you know about electrons and energy levels, do you think that Sulfur will gain or lose electrons to achieve a noble gas configuration? Explain your...

Alkali, Alkali metal, Alkaline earth metal 1116  Words | 5  Pages

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Reactive Power Compensation

NEED FOR REACTIVE POWER CONTROL ➢ REAL AND REACTIVE POWER: Except in a very few special situations, electrical energy is generated, transmitted, distributed, and utilized as alternating current (AC). However, alternating current has several distinct disadvantages. One of these is the necessity of reactive power that needs to be supplied along with active power. Reactive power can be leading or lagging. While it is the active power that contributes to the energy consumed, or transmitted...

Alternating current, Capacitor, Direct current 881  Words | 3  Pages

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we are family directions

family. Hydrogen Family – 1 Alkali metals – 3, 11, 19, 37, 55, 87 Alkaline earth metals – 4, 12, 20, 38, 56, 88 Transition metals – d block and 13, 31, 32, 49, 50, 51, 81, 82, 83, 84 Rare earth metals – f block Boron Family – 5 Carbon Family – 6, 14 Nitrogen Family – 7, 15, 33 Oxygen Family (Chalcogens) – 8, 16, 34, 52 Halogens – 9, 17, 35, 53, 85 Noble gases – 2, 10, 18, 36, 54, 86 Use the internet to complete the following tasks Draw the ‘metal vs non-metal line’ and use two arrows to...

Atom, Chemistry, Electron configuration 637  Words | 2  Pages

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Chemistry Gr 9 & 10 Review

17 18 Group 1 Alkali metals: These are highly reactive metals. Group 2 Alkaline earth metals: Less reactive metals than the Alkali metals Group 3-12 Transition metals: Some different metallic properties Group 17: Halogens: Highly reactive non metals Group 18 Noble gases: Very unreactive gases Group 18 (Hydrogen): Gas at room temperature More reactive the less the electrons the element has to lose or gain, less reactive if valence or full or half full it is harder...

Chemical compound, Chemical element, Chemical substance 841  Words | 6  Pages

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Strategically Reactive and Strategically Proactive Human Resource Management

resources (HR) to its firm has increased. The management of human resources went from being operational to strategic, which are the two levels of HR, and from reactive to proactive. The HR field may organize its thinking about the past, present, and future around the framework that results from the combination of both proactive and reactive HR. Operational HR activities generally refer to the routing, day-to-day delivery of HR basics. The strategic level of HR activity is more difficult to explain...

Human resource management, Human resources, Management 1833  Words | 6  Pages

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Atoms, Molecules, and Elements

2014). The reactivity of some elements or gases is greater than that of others. When Dmitri Mendeleev created the periodic table he arranged the elements based on their relative atomic mass. Alkali metals are very reactive when mixed with other elements and are placed in Group 1A of the periodic table. There are also extremely reactive nonmetal elements called halogens and are known to be in group 7A in the periodic table. Both the alkali metals and the halogens (nonmetals) on considered to be main group...

Atom, Chemical element, Chemistry 511  Words | 2  Pages

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Chemistry the Periodic Table and Bonding

group, each element has ONE MORE ELECTRON SHELL than the previous element. *Elements in the same group have SIMILAR CHEMICAL PROPERTIES. *The METAL NATURE of elements INCREASES DOWN THE GROUP. *The REACTIVITY of the metals INCREASE DOWN THE GROUP. *The REACTIVITY of the non-metals INCREASES UP a group. Between Groups II and III are the TRANSITION METALS. All have TWO ELECTRONS IN their outer shell and most exhibit VARIABLE OXIDATION STATES when in compounds. ------------------------------...

Ammonia, Atom, Chemistry 1472  Words | 6  Pages

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Chemistry - Module 2 - Metal 1. Metals have been extracted and used for many thousands of years * Outline and examine some uses of different metals through history, including contemporary uses, as uncombined metals or as alloys. Contemporary Uses of common metals Metal | Uses | Iron and Steel (an alloy with &lt;2% carbon)Good tensile strength, cheap, rusts (corrodes) | - Railways, bridges, buildings- motor cars bodies, ships and trains- Engine blocks, fire hydrants, drainage...

Atomic mass, Atomic number, Chemical element 12809  Words | 44  Pages

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The Periodic Table

Table Of Contents The Periodic Law…………………………. 1. What Are Elements?..………………………2. Groups/Periods……………………………. 3. Electrons………………………………....... 4. The Families………………………………. 5. Metals/Non-Metals/Metalloids……………. 6. Ionization Energy………………………….. 7. Electronegativity…………………………... 8. Ionic/Atomic Radius………………………. 9. The Octet Rule……………………………. 10. Glossary………………………………........11. The Periodic Law The modern periodic table, based on atomic number and electron configuration...

Atom, Atomic number, Chemical element 1433  Words | 7  Pages

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Global Noble Gases Market

Research Noble Gases Market (Helium, Xenon, Neon, Krypton, and Argon) - Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2013 - 2019 Published Date 2014-06-26 79 Page Report Request Sample Buy Now Press Release Global Noble Gases Market Is Expected to Reach 202.2 billion liters by 2019 Transparency Market Research State Tower, 90, State Street, Suite 700. Albany, NY 12207 United States www.transparencymarketresearch.com sales@transparencymarketresearch.com global noble gases...

Argon, Helium, Krypton 693  Words | 4  Pages

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Antioxidant Effects on Reactive Oxygen Species

Antioxidant Effects on Reactive Oxygen Species Abstract Antioxidants are among key molecules for a healthy living. Antioxidants are molecules that prevent damage of cells through inhibition of oxidizing agents such as free radicals. This experiment was aimed at investigating the role of antioxidant on the inhibition of reactive oxygen species. To demonstrate this, quercetin was used as antioxidant and its effect on reactive oxygen species examined. RAW 264.7...

Antioxidant, Free-radical theory, Hydrogen peroxide 1363  Words | 5  Pages

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Periodic Table and Alkaline Earth Metals

Laboratory# 26 Group 2: The Alkaline Earth Metals Period E Bautista, Angel Table D Comer, Tyler 3/22/12 Sullivan, Brittany Truong, Phuoc Conclusions and Questions 1. Step 1: Ca(s) +H2O-&gt;Ca (OH)2(aq)+H2(g) Step 4: Mg(s) +H2O-&gt;Mg (OH)2(aq)+H2(g) Step 10: CaSO4 + H2O-&gt; Ca(OH)2 + H2SO4 MgSO4 + H2O -&gt;Mg (OH)2 + H2SO4 Barium Sulfate: No reaction Step 13: MgCl2 + Na2CO3 -&gt; MgCO3 + 2NaCl CaCl2 + Na2CO3 -&gt; CaCO3 + 2NaCl ...

Alkali metal, Alkaline earth metal, Barium 360  Words | 2  Pages

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Halogen Reactions

Purpose One of the properties explored in this experiment will be electronegativity by the use of halides and halogens. Electronegativity is the ability of bonded atoms to attract electrons toward it. Other concepts that will be illustrated during this experiment will be the reactions of halogens are polarity of bonds and of molecules, and solubility. A molecules solubility is dependent on its polarity. Thus, the concept of electronegativity allows one to make a prediction on the molecules solubility...

Bromine, Chemistry, Chlorine 979  Words | 4  Pages

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encyclopedia This is a good article. Click here for more information. Alkali metals Hydrogen (diatomic nonmetal) Helium (noble gas) Lithium (alkali metal) Beryllium (alkaline earth metal) Boron (metalloid) Carbon (polyatomic nonmetal) Nitrogen (diatomic nonmetal) Oxygen (diatomic nonmetal) Fluorine (diatomic nonmetal) Neon (noble gas) Sodium (alkali metal) Magnesium (alkaline earth metal) Aluminium (post-transition metal) Silicon (metalloid) Phosphorus (polyatomic nonmetal) Sulfur (polyatomic...

Alkali, Alkali metal, Alkaline earth metal 975  Words | 6  Pages

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Inert Gases

Inert Gases Inert Gases and Characteristics • The inert gases are obtained by fractional distillation of air. • They are often used aboard chemical tankers and product carriers (smaller vessels). • Helium, Neon, Argon, Krypton, Xenon, Radon and are inert gases. • Duplet (Helium) or Octet • Full valence shell • • • • Weak interatomic force Very low melting and boiling points. Monatomic gases under standard conditions Helium has several unique qualities when compared with...

Argon, Gas, Helium 600  Words | 10  Pages

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Atoms, Molecules, & Elements

of these have different properties. Different atoms can also combine to form molecules. Hydrogen combines with sulfur to form H2S and hydrogen and oxygen also combine to form H2O. Dmitri Mendeleev’s Periodic table is based on atomic weight, whereas, the modern periodic table keeps the atomic number as the base. An atomic table arranges elements from left to right in a row with the atomic number and properties gradually changing. The elements on the next row will actually exhibit similar...

Atom, Atomic number, Chemical element 726  Words | 2  Pages

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Grade 9 Acadeic Science Study Notes (Chemistry)

a mixture that is easily distinguished of 2 or more different types of matter Solution/homogenous mixture: a mixture that isn’t easily visually distinguishable Alloy: a solution that is made up of 2 or more types of metals and comes in solid form Metallurgy: purification of metals and the making of alloys Properties: Physical property: a characteristic or attribute of a substance that can be determined without changing the composition of the substance Qualitative property: properties that...

Atom, Atomic number, Chemical element 1021  Words | 4  Pages

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Noble Gas and Helium

Lockyer. Helium has an atomic number of 2 and an atomic weight of 4.002602. Helium is represented by the symbol of He. Helium is the second lightest element after Hydrogen and considered as the least reactive element. The more an element is reactive, the more flammable it is. It is considered a non-metal element with a number of 2 stable isotopes. It is a gas at room temperature with a density of 0.0001785 per cubic centimeter. Helium is an odorless, colorless, tasteless and nontoxic element. Natural...

Chemical element, Helium, Hydrogen 2119  Words | 6  Pages

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Chemistry Study Guide Acids and Alkalis

ComMon Acids and Alkalis 10.1 Acids and Alkalis 1. Acids taste sour. Many fruits contain acids. 2. The three mineral acids commonly found in the laboratory are hydrochloric acid, sulphuric acid and nitric acid. 3. Alkalis taste bitter and feel soapy or slippery. 4. The common alkalis found in the laboratory are sodium hydroxide solution, potassium hydroxide solution, calcium hydroxide solution and ammonia solution. 10.2 Acid-Alkali Indicators 1. An acid-alkali indicator shows...

Acid, Base, Carbon dioxide 830  Words | 4  Pages

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Metals Physical Properties of Metals versus Non-metals Properties | Electrical conductivity | Heat conductivity | Melting and Boiling points | Malleability &amp; ductility | Lustre | Metals | Good | Good | High | High | Shiny | Non-metals | Poor | Poor | Low | Low (Brittle) | Dull | Chemical Properties of Metals versus Non-Metals Properties | Metals | Non- metals | Reaction with oxygen | Form basic or amphoteric oxides | Form acidic or neutral oxides | Ionisation | Lose electrons...

Aluminium, Carbon, Carbon dioxide 801  Words | 4  Pages

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Acids and Alkalis Lab Report

Lab Report Acids and Alkalis: Chemistry of Neutralization and Salt Formation Introduction: An acid is a group of chemicals. Acids are positively charged ions, they are liquid and are solutions of pure compounds in water. If you want to know if something is an acid, you can test it by using litmus paper. Acids will turn litmus paper red, whilst alkalis will turn it blue. Alkalis are negatively charged ions and are usually solid. Aim: To find out how much of different acids is needed to neutralize...

Acid, Ammonia, Base 559  Words | 3  Pages

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ENERGY BALANCES ON REACTIVE PROCESS KHAIRUN NIESA BT ABDULLAH MOHAMAD AFIQ BIN HUSIN RIDUAN BIN HAMID FARHANA 'ATIQAH BT YUSRI MASTURA BT MOHIDDIN NURUL AMIRA SHAQINAH BT MOHD SAIFUL 2013633154 2014874028 2014292588 2013241142 2013475548 2013704193 HEATS OF REACTION  Heat of reaction = amount of heat that must be added or removed during a chemical reaction.  Enthalpy = amount of heat content used or released in a system at constant pressure.  Enthalpy is expressed as the change in enthalpy...

Chemical reaction, Energy, Enthalpy 551  Words | 12  Pages

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What Is a Reactive Attitude? What Bearing Does It Have on the Problem of Free Will?

What is a reactive attitude? What bearing does it have on the problem of free will? A theory that has attacked the validity of discussions on freedom in modern philosophy is determinism. In these discussions, questions have arisen as to how the truth or falsity of this theory should affect our lives. In this essay I will discuss the formal implications, illustrated by Peter Strawson, that come about from this. This will mean discussion of our reactive attitudes on: our moral considerations and...

Free will, P. F. Strawson, Ted Honderich 1904  Words | 5  Pages

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development of the periodic table required numerous scientists such as John Newlands and Julius Lothar Mieyer. If not for these men, Mendeleev’s table would not be as accurate as it is today. As time progressed, technology advanced scientists’ discovered noble gasses and determined each elements atomic number. Many scientists played a vital role in developing our modern day periodic table as each person had a different knowledge and understanding of chemistry. To conclude, the periodic table was never one...

Atom, Atomic number, Chemical element 1723  Words | 5  Pages

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Effects of Time on Dyeing of Different Cotton Fabrics with Reactive Dye

......................................................................... 7 2.2 Why cotton fibers & reactive dyes been used…...............................................7 2.3 Why time is necessary for dyeing cotton fabric with reactive dye....................7 2.4 Effect of time for dyeing cotton fabric with reactive dye………………..……7 2.5 What is organic cotton and how is it grown……………………………….......8 2.6 Why does the industry want to use organic cotton……………….……....……8...

Cellulose, Cotton, Dyes 9323  Words | 51  Pages

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Controlled Assessment-Thermal Decompostion of Metal Carbonate Linked with Reactvity Series

speed of a metal carbonate breaking down depends on where the metal is in the reactivity series. The more reactive a metal is the slower it takes for it to breakdown. The less reactive a metal is it breaks down faster. Explain the hypothesis using scientific ideas: The metal carbonate which is lower in the reactivity series such as copper can thermally decompose much faster because it is the least reactive metal so its an unstable carbonate and the bonds are much weaker. So the metal that is...

Calcium, Calcium carbonate, Carbon 1154  Words | 4  Pages

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Metals and Non-Metals

Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard, except alkali metals, such as sodium, potassium, lithium, etc. Sodium, potassium, lithium etc. are very soft metals, these can be cut using knife. Strength:- Most of the metals are strong and have high tensile strength. Because...

Chlorine, Hydrogen, Ion 2553  Words | 11  Pages

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Periodic Properties of Atoms

atomic numbers 2, 10, 18, 36, 54, and 86 all are chemically inert (the noble gases), while those with atomic numbers one greater 3, 11, 19, 37, 55, and 87 are all extremely reactive metals (the alkali metals). The rows or periods of the periodic table contain the elements with the same principle quantum number (n) for their outermost electrons. That is, until the fourth period, which contains the first row of transition metals, where the electrons of highest energy exist in d orbitals, which follow...

Atom, Atomic number, Chemical element 1127  Words | 4  Pages

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Group of Elements

Group Of Elements 1. Alkali Metal Properties The alkali metals exhibit many of the physical properties common to metals, although their densities are lower than those of other metals. Alkali metals have one electron in their outer shell, which is loosely bound. This gives them the largest atomic radii of the elements in their respective periods. Their low ionization energies result in their metallic properties and high reactivities. An alkali metal can easily lose its valence electron to form...

Alkaline earth metal, Chemical element, Electron configuration 3007  Words | 10  Pages

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Corrosion of Metals

Corrosion of Metals Introduction Have you ever had a bike that went rusty, figure 1? If the paint is scratched and the rust allowed to spread, it is very difficult to repair the frame so it looks as good as new again. Rusting costs us millions of pounds each year, either through replacing things or through trying to prevent it happening in the first place. Figure 1: Bike rusting. In this booklet you learn about rusting and ways of stopping it, followed by a look at another metal, aluminium that...

Aluminium, Corrosion, Electrolysis 1056  Words | 4  Pages

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redox reaction

--Greek proverb Preparing to experiment You will be provided with the following materials: Redox Reactions Reactions involving oxidation and reduction processes are very important in our everyday world. They make batteries work and cause metals to corrode (or help to prevent their corrosion). They enable us to obtain heat by burning fuels--in factories and in our bodies. Many redox reactions are complex. However, combustion and synthesis (from elements) are two ordinary examples which...

Bromine, Chemistry, Chlorine 2187  Words | 7  Pages

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Reactive Attachment

Reactive Attachment Disorder (RAD) is a complex psychiatric disorder. A person with reactive attachment disorder is usually neglected, abused or orphaned. Reactive attachment disorder develops because the child's needs for comfort, affection and nurturing aren't met and loving attachments with others are never established. This may permanently change the child's growing brain, which hurts the ability to establish future relationships. RAD is a lifelong illness and affects every aspect in the person’s...

Reactive attachment disorder 445  Words | 2  Pages

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Periodic Table essay

group has a number from 1 till 18. Elements in a group are usually catorized so because they all have electrons arranged in smimilar ways. They behave in 434848049657000similar ways. For example, group 18(the last group) is known as noble gases because they are all gases and they do not combine with other atoms. This way, the periodic table is ordered and chemists can use it to observe patterns, and also relationships between the elements. The periodic table at the far left are the most metallic ones...

Atom, Atomic number, Chemical element 1323  Words | 3  Pages

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