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Which of these statements about neutrons is true?

A.
Neutrons travel around the nucleus of an atom.

B.
A neutron has no charge.

C.
Neutrons have less mass than electrons.

D.
The number of neutrons in an atom always equals the number of electrons.

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The answer is B.
A cannot be the answer because only electrons move around the nucleus.

 C cannot be it because electrons have a lot more mass than neutrons.

D can't be it because it 's not a typical occurrence for the amount of neutrons  to equal the amount of electrons

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