Why element of group 1 and 17 both have valency one explain
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In first group, elements have one extra electron to their nearest noble gas .To become stable they lose electron .Hence the valency is one
In seventeenth group the elements have one electron less than their nearest noble gas.To become stable they gain one electron.Hence the valency is one
In seventeenth group the elements have one electron less than their nearest noble gas.To become stable they gain one electron.Hence the valency is one
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