Question

PLEASE HELP ILL GIVE YOU A MEDAL
Which describes an isotope?

A.
two atoms of the same element that differ because they have a different number of neutrons

B.
two atoms of two different elements that have the same number of neutrons

C.
two atoms of the same element that differ because they have a different number of protons

D.
two atoms of two different elements that have the same atomic mass

Answer 1

I think it's A