Question

Which particle is known as a universal particle.
Explain it with a whole definition.

Answer 1

An electron is known as universal particle because: Its charged is always fixed. Its mass is always fixed. It is always present in cathode rays.

The Discovery of the Electrons[edit] ... The particle first named "corpuscles" by Thomson, it was later renamed "Electron" by a proposal of Irish physicist George F. Fitzgerald that has gained universal acceptance. Protons are subatomic particles that, with neutrons and electrons, are the principal constituents of atoms

Answer 2

Electron are regarded as universal particle because it is the main particle which generated as an electron only.

Electron :- it is the fundamental particle having mass 1.6 x 10^-31 kg or 1/1836 of mass of proton.