Question

On average, how many protons does one atom of zinc (Zn) have?

Atomic # - 30
Atomic mass - 65.39

A. 30
B. 35
C. 35.99
D. 65.39

Answer 1

An atom of zinc always has 30 protons.

Step-by-step explanation:

The atomic number (Z) of zinc is 30. The atomic number represents the number of protons in the nucleus of an atom. Therefore, one atom of zinc always has 30 protons. This is true regardless of the atomic mass, which in the case of zinc-65 is 65.39.