Define valency and describe its variationin a period and a group – InterviewSolution

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1.	Define valency and describe its variationin a period and a group
Answer» Solution :Valecny of an element is its combining capacity Valency of an element=number of valence ELECTRONS (if equal to or LESS than 4) Valency of an element =8-number of valence electrons (if more than 4)

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