What is the total number of valence electrons in the peroxydisulphate, $S_{2} O_{8}^{2 -}$ , ion ?

58

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60

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62

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64

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Solution

The correct option is B $62$
The total number of valence electrons in the peroxydisulphate ion $S_{2} O_{8}^{2 -}$ is $62$ .
$2 (6) + 8 (6) + 2 = 12 + 48 + 2 = 62$ .

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