How can the mass number be calculated?

1 Answer
anor277
May 23, 2018

Well, the mass number of an atom is simply the number of massive, nuclear particles, protons, and neutrons....

Explanation:

And so for ""^1H, the mass number is simply 1; for ""^2H, the mass number is simply 2; for ""^3H, the mass number is simply 3. The isotopes contain "0, 1, 2 NEUTRONS" respectively.

Most of the heavier atoms have a range of isotopes, and the quoted atomic mass on the Table is the weighted average of the isotopic masses..

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