Which of the following defines the atomic number of an atom?(1 point)

Responses

the number of electrons, protons, and neutrons
the number of electrons, protons, and neutrons

the number of neutrons
the number of neutrons

the number of protons
the number of protons

the number of valence electrons

1 answer

The atomic number of an atom is defined as the number of protons. This is the correct answer.