define Bohr bury rules?
Charle R. Bury and Niels Bohr formulated that electrons move around the nucleus in a orbit in which they do not radiate their energy. This orbit is also known as an energy shell.The no.of electrons a shell can hold is fixed.The formulae for calculating maximum capacity of a shell is 2n2 where n is the no.of energy shell.
Thus 1st shell can hold 2, 2nd 8, 3rd 18 and so on and so forth. But at most times it is observed that the electrons like to stable octate form of noble elements so the energy shell usually holds 2,8,8 respectively in 1st,2st and 3rd shells.
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