electron It is an elementary particle which is one of the fundamental constituent of matter classified under the group leptons*. It has a charge of 1.6´ 10-19 C, mass 9.1´ 10-31 kg. Its spin is (1/2)h (h is Planck's constant divided by 2p ). Electrons obey the Pauli's exclusion principle* and Fermi Dirac statistics*.
It also possesses magnetic dipole moment of 9.273´ 10-24 A.m2. Dimension of an electron < 10-15m.