The periodic table and the elements

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Helium versus R134a refrigerant gas 0 10 years 41 weeks ago
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Lightest & Strongest Metal 2 10 years 40 weeks ago
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Name for element 111 2 10 years 39 weeks ago
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Tools of construction of system of elements. 8 10 years 39 weeks ago
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10 years 23 weeks ago
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Please let us type subscripts and superscripts on the board! 16 10 years 38 weeks ago
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10 years 23 weeks ago
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chlorine as a cleaning agent 1 10 years 38 weeks ago
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how to seperate gold particles solube in mercury? 9 10 years 37 weeks ago
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1 year 16 weeks ago
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I'm New and need help... 5 10 years 37 weeks ago
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10 years 35 weeks ago
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Lutetium and Lawrencium 5 10 years 35 weeks ago
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10 years 22 weeks ago
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atomic size is the same as atomic radius ? 1 10 years 35 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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