Define valency and describe its variation in a period and a group.

Discussion in 'CBSE Class 10 Chemistry Help' started by phani, Jan 13, 2012.

  1. phani

    phani Member Staff Member

    Define valency and describe its variation in a period and a group.
    Valency 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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