Question

Carbon−12 differs from carbon−14 because it

Answer options with 5 options
A.
has a different number of neutrons.

B.
has a different number of protons.

C.
has a different number of electrons.

D.
has a different arrangement of electrons.

E.
has a different arrangement of protons.

Answers

GPT-4o mini
The correct answer is:

A. has a different number of neutrons.

Carbon-12 has 6 neutrons, while carbon-14 has 8 neutrons. Both have the same number of protons (6) and electrons (6), but the difference in the number of neutrons gives them different atomic masses and makes them isotopes of carbon.