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Electronic configuration of first 20 elements

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Answer:Back HomeSearch for: ELECTRONIC CONFIGURATION OF FIRST 20 ELEMENTS :

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

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