Question

What are protons? What are electrons?

Answer 1

Proton
it is a positively charged particle present in atom .

Electron
it is the negatively charged particle found in atom .

Answer 2

atom is divided into three sub parts proton, electron, and neutron. proton is positive sub part of atom and electron is negative sub part. electron has mass approximately zero where as protons and neutrons are collectively responsible for whole mass of atom.