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Question Question 4(1990)
Define : Proton, Electron, Neutron.
Proton [p] is a subatomic particle in the nucleus of an atom having unit positive charge 1.602 x 10-19 coulombs and mass of 1.670 x 10-24 g. It is 1837 times as heavy as an electron.
Electron [e] is a subatomic particle revolving around the nucleus of atom having unit negative charge 1.602 x 10-19 coulombs, and mass of 9.107 x 10-28 g. It is 1⁄1837 of the mass of a hydrogen atom or proton.
Neutrons [n] is a subatomic particle found in the nucleus of an atom, carrying no electric charge and mass equal to the mass of proton i.e., 1.676 x 10-24 g.