The periodic table and the elements

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Helium versus R134a refrigerant gas 0 9 years 48 weeks ago
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Lightest & Strongest Metal 2 9 years 47 weeks ago
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Name for element 111 2 9 years 46 weeks ago
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Tools of construction of system of elements. 8 9 years 46 weeks ago
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9 years 29 weeks ago
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Please let us type subscripts and superscripts on the board! 16 9 years 45 weeks ago
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9 years 30 weeks ago
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chlorine as a cleaning agent 1 9 years 45 weeks ago
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how to seperate gold particles solube in mercury? 9 9 years 44 weeks ago
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23 weeks 2 days ago
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I'm New and need help... 5 9 years 44 weeks ago
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9 years 42 weeks ago
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Lutetium and Lawrencium 5 9 years 42 weeks ago
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9 years 29 weeks ago
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atomic size is the same as atomic radius ? 1 9 years 42 weeks ago
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9 years 42 weeks ago
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WebElements: the periodic table on the WWW [http://www.webelements.com/]

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