ptoperties of electron. explain
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An electron is defined as a subatomic particle that is negatively charged and can exist either in a free state, i.e., not bound to any atom or attached to the nucleus of an atom. In atoms, the electrons are represented as existing in spherical shells of heterogeneous radii based on the energy levels of the electron.
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Properties of electron
1.Electrons are extremely small.
2. The mass of an electron is only about 1/2000 the mass of proton and neutron so electrons contribute virtually nothing to the total mass of an atom.
3. Electrons have electric charge of -1 , which is equal but not opposite to the charge of proton which is +1.
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