Question

Isotopes of an element containa.equal numbers of protons and neutrons.b.the same number of protons but a different number of neutrons.c.the same number of neutrons but a different number of protons.d.the same number of protons but a different number of electrons.

Answer 1

Isotopes are the atoms of the same elements that have the same number of protons (same atomic number) , but different number of neutrons.

b.the same number of protons but a different number of neutrons.