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Title: 12C and 13C differ in ________. Post by: Pramila on Dec 4, 2017 12C and 13C differ in ________.
A) atomic mass B) ionic number C) atomic number D) number of protons E) number of electrons Title: Re: 12C and 13C differ in ________. Post by: euroemy on Dec 4, 2017 A
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