The discovery of the neutron helped people understand
A) how two atoms of the same element can have different atomic masses.
B) why the nucleus has a positive charge.
C) how electrons are attracted to the nucleus.
D) why the nucleus is much more massive than the electrons in an atom.

Question

Quizplus · Accepted Answer

The discovery of the neutron explained the existence of isotopes, which are atoms of the same element with different numbers of neutrons, leading to different atomic masses.

The Discovery of the Neutron Helped People Understand