The particle that adds mass but no charge to the atomic nucleus is the

The particle that adds mass but no charge to the atomic nucleus is the neutron.

The nucleus contains both protons and neutrons.

Protons and neutrons have about the same mass.

However, protons have a positive charge, while neutrons have no charge,

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sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

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