Write complete electronic configuration of first 18 elements.
Answers
Answer:
Element Atomic number Electronic
Configuration
1. Hydrogen 1 1
2. Helium 2 2
3. Lithium 3 2,1
4. Beryllium 4 2,2
5. Boron 5 . 2,3
6. carbon 6 2,4
7. Nitrogen 7 2,5
8. Oxygen 8 2,6
9. Fluorine 9 2,7
10. Neon 10 2,8
11. Sodium 11 2,8,1
12. Magnesium 12 2,8,2
13. Aluminium 13 2,8,3
14. Silicon 14 2,8,4
15. Phosphorus 15 2,8,5
16. Sulphur 16 2,8,6
17. Chlorine 17 2,8,7
18. Argon 18 2,8,8
Hope it helps you ^_^
Explanation: