Question

can someone tell me electronic configration for first 18 elements in klmn shell it would be a great help according to class 9 ch 4 structure of atom pl answer my question whenever you all are free thank you​

Answer 1

Explanation:

Hydrogen: 1

Helium: 2

lithium: 2,1

beryllium: 2,2

boron: 2,3

carbon: 2,4

nitrogen: 2,5

oxygen : 2,6

fluorine: 2,7

Neon: 2,8

sodium: 2,8,1

magnesium: 2,8,2

alluminium : 2,8,3

silicon: 2,8,4

sulphur: 2,8,5

phosphorous: 2,8,6

chlorine: 2,8,7

Argon: 2,8,8

Answer 2

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