Question

How can two atoms of the same chemical element be different?

A.They may be different isotopes of the element. Each isotope of the same element has a different number of electrons.


B.They may be different isotopes of the element. Each isotope of the same element has a different number of neutrons.


C.They may be different allotropes of the element. Each allotrope of the same element has a different number of electrons.


D.They may be different allotropes of the element. Each allotrope of the same element has a different number of neutrons.

Answer 1

The answer is B as isotopes are different versions of the same chemical element containing the same amount of protons and electrons but different amounts of neutrons.