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04.06 The Periodic Table of Elements

By: Lauren Santiago

lauren santiago

on 13 January 2013

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Transcript of 04.06 The Periodic Table of Elements

The Periodic Table of Elements The name of the element, including an explanation for the origin of its name if that origin is know - The name of the element I choose is gold. Gold is a dense, soft, shiny, malleable and ductile metal. It has a bright yellow color which it maintains without oxidizing in air or water. 1 The chemical symbol, average atomic mass, and atomic number for the element - The chemical symbol: AU

Average atomic mass: 196.96

Atomic number: 79 The number of valence electrons in a neutral atom of the element 2 - A description of the element's position on the periodic table, including a list of other elements that have similar properties - Gold is considered a metal like silver, platinum, titanium, sodium, etc. The oxidation number for gold is +2 like calcium, magnesium, nickel, etc. A description of where the element is commonly found in nature - Gold is found in all the rivers of the world in sizes ranging from nuggets that can weight several pounds to tiny flakes that are the size of grains of flour. A description of how the element is commonly used by people and what properties make it appropriate for that use - Gold is commonly used as jewelery. Gold is known to be a non-reactive metals; but that does not mean that everyone can wear any type of gold jewelry without any problems. A list of five compounds the element can form Compound Naturally Occurring Only Human-Made Both Metallic Gold Oxidation Gold chloride Gold trichloride Gold mecaptides A brief description of how the element was discovered, identified, and/or purified - Gold was first discovered as shining, yellow nuggets. Gold was first discovered in its natural state, in streams all over the world. Fact about GOLD - Gold melts at 1064.43 degrees centigrade. It can conduct both heat and electricity and it never rusts.
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