The number of protons in an uncharged atom __________.

Question

Answer
Unselected
equals the number of electrons

Unselected
equals the number of neutrons

Unselected
equals the number of electrons in the outer orbital of the atom

Unselected
varies with the different isotopes

Unselected
determines its mass number

Answer 1

The correct answer is equals the number of electrons.

In an uncharged atom, the number of protons equals the number of electrons, resulting in a net charge of zero.