The number of electrons in the valence shell | vedclass

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(C) To determine the number of electrons in the valence shell,we calculate the total number of bonding and lone pairs around the central atom.In $SCl_

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$SCl_2$

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(C) To determine the number of electrons in the valence shell,we calculate the total number of bonding and lone pairs around the central atom.In $SCl_2$,the central atom is $S$ (Sulfur).Sulfur has $6$ valence electrons.It forms $2$ single bonds with $Cl$ atoms,using $2$ electrons.Number of lone pairs on $S = \frac{6 - 2}{2} = 2$.Total electron pairs around $S = 2 	ext{ (bonding pairs)} + 2 	ext{ (lone pairs)} = 4 	ext{ pairs}$.Total electrons in the valence shell $= 4 	imes 2 = 8$ electrons.Thus,$SCl_2$ follows the octet rule.

The number of electrons in the valence shell of the central atom of a molecule is $8$. The molecule is

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