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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