Question

what does the atomic number of an element represent? a) the number of protons in the atom b) the number of neutrons in the atom c) the mass number of the atom d) the number of protons plus neutrons

Explanation:

The atomic number of an element is defined as the number of protons in the nucleus of an atom of that element. This is a fundamental concept in chemistry.

Answer:

A. The number of protons in the atom