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29/12/2020 3:08 pm
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lf K and L shells of an atom are full, then what would be the total number of electrons in the atom?
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29/12/2020 3:09 pm
The maximum number of electrons present in a shell = 2n2 where n – shell number Value of n for K shell = 1
∴ Maximum number of electrons in K shell = 2n2 = 2(1)2 = 2 Value of n for L shell = 2
∴ Maximum number of electrons in L shell = 2(2)2 = 8
Thus, total no. of electrons = 2 + 8 = 10