Thursday
September 3, 2015

Homework Help: chemistry

Posted by Jermey on Sunday, October 20, 2013 at 2:47pm.

A B C D E F G H 14Si
A B C D E F G H 13Al
A B C D E F G H 12Mg
A B C D E F G H 4Be


A


B


C


D


E


F


G


H

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