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Grade 11Inorganic Chemistry

Plz explsin me. And why k has 2 before it!? Plz explsin me this lewis structure

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Profile image of Mayank kumar
9 Years agoGrade 11
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1 Answer

Profile image of Bhavya
9 Years ago
Dear student
Over here we are having 2 in front of K because S needs 2 electrons to complete it’s octet (Valency = 2) whereas 1 K can provide only 1 electron (valency = 1) thus in order for bond formation there should be 2 K.
Formula = K S
1 2
On cross multiplication,we get = K2S