A. M
B. Z
C. P
D. A
Submitted by: Rashid Mehmood
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons.
Correct Answer: Z ✔
Last Updated: January 01, 2020