Question

draw the electronic configuration of the following elements and write down its valency 1, helium 2, oxygen 8, carbon 6, nitrogen 7 ,magnesium 12 ,sodium 11, chlorine 17, potassium 19, argon 18 ,neon 10.

Answer 1

Explanation:

hi army.

I don't know sorry

Answer 2

Explanation:

helium:-2

oxygen:-2,6

carbon:-2,4

nitrogen:-2,5

magnesium:-2,8,2

chlorine:-2,8,7

sodium:-2,8,1

pottasium:-2,8,8,1

argon:-2,8,8

neon:-2,8

sodium and potassium has valency 1

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