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If Z = 3, what would be the valency of t...

If Z = 3, what would be the valency of the element ? Also, name the element.

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By Z = 3, we mean that the atomic number of the element is 3, its electronic configuration is 2,1. Hence the valency of the element is 1 (Since the outermost shell has only one electron).
Therefore, the element with Z = 3 is Lithium.
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Knowledge Check

  • The valency of any element of group 18 is

    A
    18
    B
    8
    C
    0
    D
    None of these

  • If x denotes the number of valence electrons of the element, then valency is equal to:

    A
    x-8
    B
    x
    C
    8-x
    D
    x or 8-x

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