# Please answer this question????

**Dear student, (a) The maximum number of electrons that can be accommodated in any shell is given by the formula 2n**

^{2}. M shell has an n= 3

**So, 2n ^{2} = 2 (3)^{2} = 18 electrons**

(b) The distribution of electrons in sodium atoms is 2,8,1 since it has 11 electrons.

K has 2 electrons

L has 8 electrons

M has 1 electron

(c) K can accommodate 2 electrons and L can accommodate maximum of 8 electrons, if both the shell are full, so total number of electrons = 2 + 8 = 10 electrons

Regards

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