Science, asked by piyush035, 1 year ago

an element X has atomic no.17, find its valency and electronic configuration.

Answers

Answered by prikanka
3
It's valency is 1 and its electric configuration is 2,8,7
Hope it helps....

piyush035: thanks
Answered by 9552688731
1
electrons=17
so, electronic configuration is
1s2 2s2 2p6 3s2 3p5

Valency = 8-7 = 1 [∵2, 8, 7] Atom needs 8 electrons to get stable.
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