The commonest form of the Carbon atom that exists is at times referred to as C¹². An isotope of this atom is called C¹⁴. C¹⁴must have a different number of___________than C¹². A) Ions B) Protons C) Atoms D) Neutrons E) Electrons

Question

Quizplus · Accepted Answer

Isotopes of the same element have the same number of protons (atomic number) but a different number of neutrons (mass number), hence the only correct answer is D.

The Commonest Form of the Carbon Atom That Exists Is