The periodic table and the elements

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Periodic Table - What's official? 5 11 years 3 weeks ago
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11 years 1 week ago
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Ununtrium and Ununpentium Discovered 4 11 years 16 weeks ago
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11 years 1 week ago
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Helium versus R134a refrigerant gas 0 11 years 5 days ago
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n/a
Name for element 111 2 10 years 51 weeks ago
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10 years 51 weeks ago
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Lightest & Strongest Metal 2 11 years 23 hours ago
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10 years 51 weeks ago
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chlorine as a cleaning agent 1 10 years 50 weeks ago
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10 years 50 weeks ago
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I'm New and need help... 5 10 years 49 weeks ago
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10 years 47 weeks ago
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atomic size is the same as atomic radius ? 1 10 years 46 weeks ago
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10 years 46 weeks ago
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potassium nitrate 6 10 years 36 weeks ago
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10 years 35 weeks ago
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Is this an original discovery, or is it known already? 15 11 years 10 weeks ago
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10 years 35 weeks ago
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WebElements: the periodic table on the WWW [http://www.webelements.com/]

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