A. Atoms with different numbers of protons
B. Atoms with different numbers of neutrons
C. Atoms with different electron configurations
D. Atoms with the same mass number
Answer: Atoms with different numbers of neutrons
A. Atoms with different numbers of protons
B. Atoms with different numbers of neutrons
C. Atoms with different electron configurations
D. Atoms with the same mass number
Answer: Atoms with different numbers of neutrons
Additional Information: Isotopes are atoms of the same element with different numbers of neutrons.
Subjects: Atomic Structure, Chemistry