adds mass to the nucleus of the atom, but has no charge.\no neutrons\no electrons\no moles\no protons

adds mass to the nucleus of the atom, but has no charge.\no neutrons\no electrons\no moles\no protons
Answer
Brief Explanations:
Neutrons are sub - atomic particles located in the nucleus of an atom. They contribute to the mass of the nucleus but have no electrical charge. Electrons are outside the nucleus and have a negative charge. Moles are a unit of measurement in chemistry, not sub - atomic particles. Protons are in the nucleus but have a positive charge.
Answer:
A. neutrons