Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic transition metal‚ it has historically been sometimes classified as a rare earth element‚ together with yttrium and the lanthanoids. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia. Scandium is present in most of the deposits of rare earth and uranium compounds‚ but it is extracted from these ores in only a few mines worldwide. Because of the low availability
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The Element Argon Argon Argon was originally named after the Greek word “Argos‚” meaning inactive. Argon’s chemical symbol was just A before it was changed to Ar in 1957. It has an atomic number of 18‚ and is in Period 3‚ Group 18. Argon contains 18 protons and 18 electrons with 22 neutrons. It has an atomic mass of 39.948. Suspected to be present in the atmosphere in 1785 by Henry Cavendish‚ Argon
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Give the elements English and elemental symbol‚ if the elemental symbol is different then would be expected in English‚ such as tungsten W‚ describe why it has that symbol ▪ The element name is osmium and its elemental symbol is Os. Its atomic mass is 190.23 2. What is the elements atomic number‚ what class of elements does it fall into ▪ The atomic number for osmium is 76. Osmium falls into the transition metal group. 3. Are there any common isotopes of this element?
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The Honda Element Honda which is a professional product platform is an extremely famous Japanese automaker. Honda is also the largest motorcycle manufacturers of all over the world. Moreover‚ vehicle production and scale are among the largest car manufacturers of the world. Nowadays‚ Honda is a multinational automobile‚ motorcycle production and sales group. In addition‚ Honda in the United States is representative of the popular. According to the article introduce that the technology‚ publicity
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Adopt an Element Purpose To research two elements on the periodic table and create a neat‚ colorful‚ and creative 8.5’ x 11’ poster on colored paper that highlights the following information: • Symbol (lettering must be 11 cm high‚ minimum must be placed in the left hand corner) • Name of element (lettering must be 2 cm high‚ minimum Must be underneath the symbol.) • Atomic number (lettering must be 2 cm high‚ minimum Must be placed in the top right hand corner) •
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Mini Proposal Faculty of Education University of Malaya Topic of Research: Development and Evaluation of Humanism Elements in teaching and learning ‘Periodic Table of Elements’ among Form 4 students Prepared by: LIM PEI LEE (PGJ 110010) Post Graduate for Master in Education (Science Education) Semester 2‚ Session 2011/2012‚ Education Faculty‚ University of Malaya. Table of Contents |No. |Contents
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1- Look up the following elements and show their (atomic number‚ atomic mass‚ the symbol‚ number of electrons‚ protons and neutrons) the elements are Iron‚ copper‚ sodium‚ magnesium‚ chlorine‚ fluorine‚ carbon‚ hydrogen‚ oxygen. Element |Symbol |Atomic # |Mass # |#Protons |#Electrons |#Neutrons | |Iron |Fe |26 |26+26=52 |26 |26 |26 | |Copper |Cu |29 |29+29=58 |29 |29 |29 | |Sodium |Na |11 |11+11=22 |11 |11 |11 | |Magnesium |Mg |12 |12+12=24 |12 |12 |12 | |Chlorine |Ci |17 |17+17=34 |17 |17 |17
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I was assigned was the element Manganese. The symbol for manganese is Mn. It is number 25 on the periodic table. That means it has 25 protons and electrons even on mars or anywhere you go it will have the same protons and electrons. The atomic number would also be 25. It has 30 neutrons also in in the nucleus. The melting point for Manganese would be 1519 K (1246°C or 2275°F). The boiling point would be 1519 K (1246°C or 2275°F) according to http://education.jlab.org/. It also could be 1245.0 °C
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The seven elements and various claims for its discovery reveal many of the nationalistic traits that we have seen in the case of other elements‚ most notably the controversy surrounding the discovery of hafnium‚ element 72. But element 85 gives our study a greater depth than has yet been revealed by the already covered elements. What this story shows is that the nationalistic prejudices persist to this day in many respects and that the identity of the “discoverer” of the element very much depends
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TITLE: The Elements Author: Theodore Gray Pages: 200 Genre: Non-Fiction Name: Sooraj Shah Date: 1/30/11 Plot Summary: I will be talking about 3 elements in the plot summary because there is no plot in the book. Each page is just talking about an element‚ so you could start anywhere in the book if you wanted to. The first element I will discuss is hydrogen. Hydrogen is the first element on the periodic table and is the most reactive. It only has one proton and one electron. It is the
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