Science, asked by s2idhmoradhikhay, 1 year ago

Element 'Y' has mass no-35,Neutrons-18.Write its Electric Configuration,Group no.,Period no and its Valency.

Answers

Answered by Odeneho

0

1s2 2s2 2p6 3s2 3p5
It belongs to group 7 and period 3, Valency is 3
De element is chlorine

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