Atoms of the same element with different mass numbers are called
A) ions.
B) neutrons.
C) chemical groups.
D) chemical families.
E) isotopes.

Name: Atoms of the same element with different mass numbers are called A) ions. B) neutrons. C) chemical groups. D) chemical families. E) isotopes.
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Quizplus · Accepted Answer

Atoms of the same element with different mass numbers are called isotopes. Isotopes have the same number of protons but different numbers of neutrons, which results in a different atomic mass.

Atoms of the Same Element with Different Mass Numbers Are