. the MOLE 5. METALS from their ORES ...all in the context of how Chemistry contributes to cultural development but first‚ an introduction... Chemistry of the Metals Technology Needs Metals In the previous topic you learnt about the Elements of the Periodic Table. In this topic you will concentrate on the chemistry of the metals‚ and some of the chemical patterns that they show. ... and Speaking of Patterns‚ in this topic you will find that The great sweep of human cultural development
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electron here +10e = +10β= positron 10n = neutron As a result of beta decay‚ the product nucleus is Answer one atomic number lower than the original element. two atomic number higher than the original element. here one atomic number higher than the original element. two atomic number lower than the original element. What is X for the nuclear reaction: 21284Po à 20882Pb + X Answer 42p 1-1β here 42α 11n Which statement is not correct for the nuclear
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Associate Program Material Levels of Life Worksheet Complete all three parts of this worksheet. Part I: Atomic Structure – Fill in the missing information on atomic structure and organic compounds. Atomic Structure Subatomic Particle Charge Location in an Atom Proton Positive Nucleus Neutron Neutral Nucleus Electron Negative Spherical (outer-shell) Organic Compounds Large Biological Molecule Atoms it Contains Monomer(s) Function(s) in Living Organisms Carbohydrates
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with other substances it will be different and this is because it will not react the same the whole time. The other thing is that this elements electron configuration is 11 which is quite low when comparing them to the other elements in the periodic table. However this metal is more reactive than lithium which is a good thing because it is quite strong. This element has three main energy levels and the outer shell only has one election and this is higher than lithium however potassium is stronger
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Carbon is denoted by the symbol C‚ is part of group 14 on the periodic table‚ and is the fourth most abundant element in the universe (by mass). Carbon has an electron configuration of 1s2‚ 2s2‚ 2p2. With 4 valance shell electrons it is expected to form 4 bonds‚ this means carbon is tetravalent. However the s orbitals do not form the same type of bond (with other atoms) as the p orbitals‚ this is because their shapes are different. For example CH4 would have the following bonds: C(s)-H(s)‚ C(s)-H(s)
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and analyzation of existing knowledge lead to new data or facts? Or is the other way around? My argument is that new ways of thinking lead to discovery of new facts and data. One such example from the natural sciences is the Periodic Table of Elements‚ by Mendeleev. The Russian chemistry professor Dimitri Ivanovich Mendeleev and German Chemist Julius Luthar
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Reactions & Nuclear Chemistry Assessment Task Assignment Question 1 Produce a summary reactions sheet for all the chemical reactions encountered in production of materials. Your summary should contain the following components a) Name of reaction b) General word equation c) Balance formulae equation d) An example of the reaction Question 2 What types of instruments and processes are used to detect radiation? The properties of nuclear radiation are used to detect their
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Laura Speirs June 13‚ 2011 Professor Nalley Tungsten Paper Tungsten Tungsten is a gray-white metallic element that is stable and is very resistant to acids and bases. It does‚ however‚ oxidize in air‚ especially at higher temperatures Tungsten was discovered by Juan José and Fausto Elhuyar‚ Spanish chemists and brothers‚ in 1783 in samples of the mineral wolframite ((Fe‚ Mn)WO4). Tungsten was named from the Swedish words "tung sten" meaning "heavy stone." Tungsten ’s chemical symbol comes from
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differently and form new substances. It is important that chemical equations represent this law by always having equal numbers of each type of atom on both sides of the equation; chemists call this “balanced.” In a balanced equation‚ each type of element must appear on both sides of the arrow the same number of times. Sometimes it can be difficult to observe what happens to all of the atoms in a chemical reaction‚ especially if one of the reactants or products is a gas. Complete the lab demonstration
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Conditions- Solid 5. Astatine At Normal Conditions- Solid Give the names and formulas of three compounds that contain one element from the Noble Gas family. 1. Helium He 2. Neon Ne 3. Argon Ar 4. Krypton Kr 5. Xenon Xe 6. Radon Rn Look up the elements in group 15 from period 2 - 5‚ give the name and symbol of each. Give a biological use for each (click on the element and then on the term "biology" in the margin). 1. Nitrogen N nitrogen is a key component of biological molecules such
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