07 November 2009
Periodic Table: what is periodic table. why is it being used? Matter in Natrue.
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1. The ancient greeks. The ancient chinese. The ancient middle east all had questions of what elements existed in Nature.
2. Elements in Nature was Not solved until the 19th. 20th. century when the periodic table was made.
3. Elements found Nature. There are No un-natural or Super-natural elements. There is a simple system for knowing the elements found in nature and that exists in nature.
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