Defination of electron

1.	Defination of electron
Answer» Discovered by jj thomson present towards the exterior of atom mass is negligible and charge is -1 The atom is made up of three particles: electrons, protons and neutrons. The electron is a subatomic particle that carries a\xa0negative charge. Electrons are bound to the nucleus of the atom in, what are called, sub-shells. There are free electrons too which are not bound to any atom. Electrons are represented as e or ß. As mentioned earlier, electrons are negatively charged and is measured in Coulomb (the charge of an electron is given as 1.60x10−19C .

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