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.
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Explanation:
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1
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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