2010-09-21, 10:38 PM
An element is defined by the amount of protons it has. So your teacher must have said something wrong.
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Earth & Space Science
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Earth & Space Science - by Arrg - 2010-09-21, 10:28 PM
Earth & Space Science - by Kabanaw - 2010-09-21, 10:38 PM
Earth & Space Science - by Hazzy - 2010-09-21, 10:41 PM
Earth & Space Science - by larmie - 2010-09-23, 01:41 AM
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