What determines an atom’s identity?(1 point)

Responses

the number of neutrons
the number of neutrons

the valence number
the valence number

the number of protons
the number of protons

the number of electrons

the number of protons

The correct answer is: the number of protons. The number of protons in an atom's nucleus determines its identity. This is because each element on the periodic table has a unique number of protons, known as the atomic number.