When you add a neutron to an atom, its mass increases by 1. Neutrons are neutral particles, so they do not affect the net charge of the atom, which remains the same. Therefore, the correct answer is:
Its mass increases by 1.
What changes when you add a neutron to an atom?
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Its net charge changes to +1.
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Its mass decreases by 1.
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Its net charge changes to -1.
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Its mass increases by 1.
1 answer
1 answer