The mass number of an element is equal to

Question

Chemistry

River Stevens

13 December, 08:43

The mass number of an element is equal to

+2

Answers (2)

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Genevieve Combs · Answer 1

We can say that the mass number (A) is the sum of the masses of the particles in an atom, but since the mass of the electron is negligible compared to the masses of protons and neutrons, the mass number is the sum of the masses of protons (Z) and neutrons (n).

Alia Brock · Answer 2

I think Electorn