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October 25, 2014

Homework Help: chemistry

Posted by ducky on Sunday, September 26, 2010 at 8:08pm.

what fraction of the total mass of an 56 Fe atom is due to the electrons? The mass of a proton is 1.673 x10-24 g, of a neurton 1.675 x 10-24 g, an of an electron 9.109 x 10-28g.

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