Question

1. Which is true for any element?

A. Atomic number = number of protons + number of electrons
B. Atomic number = nun number of protons
C. Atomic number = number of protons + number of neutrons
D. Atomic number = nun number of protons, electrons, and neutrons

Answer 1

Atomic number represents both the number of protons and electrons but not added together... for example lithium has an atomic number 3, meaning lithium has 3 electrons and 3 protons