Chemistry, asked by MichaelaI, 9 months ago

provide electronic configuration of first 20 elements​

Answers

Answered by Anonymous
7

Explanation:

1 Hydrogen 1s1

2 Helium 1s2

3 Lithium [He]2s1

4 Beryllium [He]2s2

5 Boron [He]2s22p1

6 Carbon [He]2s22p2

7 Nitrogen [He]2s22p3

8 Oxygen [He]2s22p4

9 Fluorine [He]2s22p5

10 Neon [He]2s22p6

11 Sodium [Ne]3s1

12 Magnesium [Ne]3s2

13 Aluminum [Ne]3s23p1

14 Silicon [Ne]3s23p2

15 Phosphorus [Ne]3s23p3

16 Sulfur [Ne]3s23p4

17 Chlorine [Ne]3s23p5

18 Argon [Ne]3s23p6

19 Potassium [Ar]4s1

20 Calcium [Ar]4s2

Answered by Anonymous
5

Answer:

electronic electronic configuration of first 20 elements

hydrogen --1

helium --2

lithium -- 2,1

brelium --2,2

boron --2,3

carbon --2,4

nitrogen --2,5

oxygen --2,6

flourine -- 2,7

neon -- 2,8

sodium -- 2,8,1

magnesium --2,8,2

aluminum -- 2,8,3

silicon -- 2,8,4

phosphorous -- 2,8,5

Sulphur -- 2,8,6

chlorine -- 2,8,7

argon -- 2,8,8

pottasium -- 2,8,8,1

calcium -- 2,8,8,2

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