The element 'X' belongs to 4th period and 15th (VA) group, write the no. of
valance electrons, valancy and state whether it is metal or non-metal?
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Valence electrons= 5
Valency= [-] 3 this element has 3 electrons in the outermost shell
It is a metalloid [nor a metal nor a non-metal] it has both the qualities.
The element is Arsenic. Hope this helps.
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