Which Subatomic Particles Contribute to the Atomic Number for Any

Question

Which subatomic particles contribute to the atomic number for any given element?
A)protons
B)protons and neutrons
C)neutrons
D)protons and electrons

Accepted Answer

The atomic number of an element is equal to the number of protons in the nucleus of its atoms. Therefore, only protons contribute to the atomic number of an element.