Question

How will You Find the valency of chlorine,suphur and magnesium ?​

Answer 1

Explanation:

If the number of electrons in the outermost shell of the atom of an element is less than or equal to 4, then the valency of the element is equal to the number of electrons in the outermost shell.

Answer 2

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${ \bf{How \: will \: You \: Find \: the \: valency \: of \: chlorine, \: suphur \: and \: magnesium}}$

${ \underline{ \boxed{ \large{ \bf{ \gray{Answer}}}}}}$

${ \bf{chlorine \: has \: the \: electronic \: configuration \: = 2, \: 8, \: 7}}$

${ \bf{valency \: of \: chlorine \: = 8 - 7 = 1}}$

${ \bf{supher \: has \: the \: electronic \: configuration = 2, \: 8, \: 6}}$

${ \bf{valency \: of \: suphur = 8 - 6 = 2}}$

${ \bf{Magnesium \: has \: the \: electronic \: configuration = 2, \: 8, \: 2}}$

${ \bf{valency \: of \: magnesium = 2}}$