sir, is atomic mass the no. of p+n or 1/12 the mass of carbon 12 atom??

Asked by azhardeeb | 10th May, 2011, 12:00: AM

Expert Answer:

Atomic mass is undoubtedly the mass of atom as a whole and  is  equal to 1/12 the mass of carbon atom expressed as  a.m.u whereas the  number of protons and neutrons is referred to as mass number expressed as A.

Answered by  | 10th May, 2011, 12:10: PM

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