Question

What are the three particles of an atom?
A. Neutron, electron, and ion
B. Proton, ion, and valencium
C. Proton, neutron, and electron
D. Electron, proton, and isotope

Answer 1

Protons are positively charged, Neutrons are neutral, And Electrons are Negative, so the correct answer is C.

Answer 2

An atom is mostly composed of Protons and Neutrons in the nucleus, and negatively charged electrons orbiting the atom.

I'm short, your answer is C.