The correct response is:
B. the number of protons
The number of protons in an atom's nucleus determines its identity and defines the element.
The Composition of Atoms Quick Check
1 of 51 of 5 Items
Question
What determines an atom’s identity?(1 point)
Responses
A. the valence number
B. the number of protons
C. the number of neutrons
D. the number of electrons
1 answer