B
Atoms of the same element with different numbers of protons
C
Atoms of the same element with the same number of protons but different neutrons
D
Atoms of different elements with the same electrons
Correct Answer: Option C — Atoms of the same element with the same number of protons but different neutrons
Explanation:
Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons resulting in different mass nu...
Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons resulting in different mass numbers but similar chemical properties.