Question

The combined number of the protons and the neutrons in an atom is the ________.







A.

isotopic number.





B.

chemical number.





C.

mass number.





D.

atomic number.

Answer 1

This should be in the chem topic area, however, it is C. Mass = protons + neutrons, and # of protons = atomic number btw.

But your answer is C.

Answer 2

Atomic Mass

Answer 3

I agree with zelda.