Question

What is the lightest subatomic particle?

Answer 1

1. The electron weighs $9.11\times {10}^{-31}\mathrm{kg}$, making it the lightest subatomic particle.
2. Compared to protons and neutrons, it has practically little mass and functions as both a wave and a particle.
3. Along with neutrons and protons, the electron is one of the lightest subatomic particles and one of the fundamental building blocks of atoms.

Electron:

1. The first subatomic particle to be identified was the electron. The British scientist J.J. Thomson discovered it in 1897.
2. Thomson while doing cathode ray research. In addition to confirming the materialistic basis of electricity, the discovery of electrons as the ultimate carriers of electricity opened up a completely new world for our microscopic comprehension of the flow of electricity.