Summarize the rules for writing the distribution of electrons in various shells for the first eighteen elements.

Q.6:- Summarize the rules for writing the distribution of electrons in various shells for the first eighteen elements.

 

Answer:-

The distribution of elements in different orbits is governed by a scheme called Bohr-Bury scheme. There are following rules:



(i) The maximum number of electrons present in any shell is given by the formula In1.
Where n = no. of orbit.
(ii) The maximum number of electrons that can be accommodated in the outermost shell is 8.
(iii) Electrons in an atom do not occupy a new shell unless all the inner shells are completely filled.


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