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Answer:
Electrons are sub-atomic particles found in the orbitals (shells, electron cloud) of an atom. They have a negative charge and a mass significantly smaller than a proton or a neutron.
Explanation:
1- Electrons
Electrons are subatomic particle that's keep an elementary charge which has a magnitude of -1. The charge of electrons is always balanced by protons i.e protons have equal charge as electrons but opposite in nature.
Electrons was discovered by the British physicist J.J. Thomson in the year of 1897, by his experimental setup of cathode Ray tubes.
2- Location of Electrons
Unlike protons and neutrons, which are located in the nucleus at the center of the atom. Electrons are located outside the nucleus and keep constantly moving around the nucleus. Force of attraction balanced the electrons in the orbit. Electrons rotate around the nucleus as planets orbit the sun.
3- Charge of Electrons
An electrons is a negatively charged particle and it is equal to 1.6×10^-19 coulomb in magnitude.
4-Mass of Electrons
The mass of electrons is 1/1837 of a proton and it is equal to 9.10×10^-31 kilograms mass of electrons is very less as compared to the mass of proton.
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