The subatomic particle that has the smallest mass is electrons
Explanation
- Atom has three sub particles , that is neutron. protons and electrons.
- Electrons has the smallest mass since it has a mass of 9.11 x10 ⁻³¹kg
- Both neutrons and protons has the same mass,that is the mass of 1.67 x 10⁻²⁷ kg
- since 9.11 x 10⁻³¹kg is small than 1.67 x 10⁻²⁷kg electrons has the smallest mass
