Science, asked by kalpjain2009, 5 months ago

pls answer it fastt

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Answered by shruti1746

1

Answer:

[X]

atomic no.= 11 (sodium)

electronic configuration=2,8,1

it will loose one electron from the valence shell

valency +1.

[Y]

atomic no.= 18(argon)

electronic configuration=2,8,8

it can't loose or gain any electron

valency=0

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