Compare the three subatomic particles in terms of location in the atom mass and relative charge

Protons and neutrons are located in the nucleas and makes up most of the mass. Electrons orbit around the nucleus in the electron cloud and have very little mass. Protons have a positive (+) charge, Neutrons have neutral (≠) charge, and Electrons have a negative (-) charge.

The answer is b on plato.

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess