The periodic table and the elements

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what is electron deficiency? 1 9 years 33 weeks ago
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Where did the elements come from? 39 9 years 38 weeks ago
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Who can memorize the whole periodic table? 32 9 years 29 weeks ago
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Why does Ruthenium....? 1 9 years 35 weeks ago
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why no names for groups III and IV ? 7 10 years 26 weeks ago
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Why vary from IUPAC for lanthanoids and actinoids? 42 9 years 18 weeks ago
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WTF?!? Tritium decaying into helium?!?! 6 9 years 37 weeks ago
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WebElements: the periodic table on the WWW [http://www.webelements.com/]

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