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Undo revision 452404 by Special:Contributions/Numberwang (User talk:Numberwang)
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+20
April 8, 2008
Reverted edits by Thisisnotspam88 (Talk); changed back to last version by Barikada
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m-26
January 27, 2008
December 20, 2007
Reverted edits by Liberalking1 (Talk); changed back to last version by Aschlafly
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+1,843
December 7, 2007
November 8, 2007
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March 15, 2007
→Structure of an Atom
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+253
→Polarity
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→Polarity
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-560
reverted - vandalism
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-560
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+420
Reverted edits by Angstrom (Talk); changed back to last version by Navy Nuke
m-177
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+177