Question

Which statement about isotopes is correct?

Isotopes are different elements with different numbers of protons but the same number of neutrons.

Isotopes are the same element with different numbers of protons and different numbers of neutrons.

Isotopes are the same element with the same number of protons but different numbers of neutrons.

Answer 1

Isotopes are the same elements with the same number of portions but different numbers of neutrons

For instance, the element carbon exists as several isotopes, each having the exact same number of protons (otherwise, it would no longer be carbon if the # of protons changes), and a different number of neutrons

Answer 2

C; Isotopes are the same element with the same number of protons but different numbers of neutrons.