Question

Two isotopes of an element have

• A. the same number of nucleons in their nuclei
• B. the same number of protons as well as neutrons
• C. the same number of protons but a different number of neutrons
• D. a different number of protons but the same number of neutrons

Answer 1

Answer: (C)

Two isotopes of an element have the same number of protons but different number of neutrons.