Question

What is the Z number of an atom with 9 protons, 8 neutrons, and 7 electrons?

7
8
9
16
17

Answer 1

9

Step-by-step explanation:

The Z number is the atomic number. The atomic number is number of protons in the atom that defines what element it is. In this case there are 9 protons, making that the atomic number/Z number.