Question #e5346

1 Answer
anor277
Sep 29, 2016

First you need ZZ, "the atomic number"the atomic number.

Explanation:

And "Mass number"-"Atomic number"Mass number−Atomic number == "Number of neutrons"Number of neutrons.

Both neutrons and nuclear protons are the massive particles of the atom, and both contribute to the mass of an isotope. You need both to make the determination of mass.

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