Question

electronic configuration of elements having atomic number 1 to 15 ​

Answer 1

Answer:

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Explanation:

1. Hydrogen=>1.
2. Helium=>2.
3. Lithium=>2,1.
4. Beryllium =>2,2.
5. Boron=>2,3.
6. Carbon=>2,4.
7. Nitrogen=>2,5.
8. Oxygen=>2,6.
9. Fluorine=>2,7
10. Neon=>2,8.
11. Sodium=>2,8,1.
12. Magnesium=>2,8,2.
13. Aluminium=>2,8,3.
14. Silicon=>2,8,4.
15. Phosphorus=>2,8,5.

So this is the electronic configuration of first 15 elements.

HOPE IT HELPS.

Answer 2

Explanation:

Electronic configuration of first 15 elements are as:

H 1s

He 1s^2

Li 1s^2 2s^1

Be 1s^2 2s^2

B 1s^2 2s^2 2p^1

C 1s^2 2s^2 2p^2

N 1s^2 2s^2 2p^3

O 1s^2 2s^2 2p^4

F 1s^2 2s^2 2p^5

Ne 1s^2 2s^2 2p^6

Na 1s^2 2s^2 2p^6 3s^1

Mg 1s^2 2s^2 2p^6 3s^2

Al 1s^2 2s^2 2p^6 3s^2 3p^1

Si 1s^2 2s^2 2p^6 3s^2 3p^2

P 1s^2 2s^2 2p^6 3s^2 3p^3

OR

H 1

He 2

Li 2, 1

Be 2, 2

B 2, 3

C 2, 4

N 2, 5

O 2, 6

F 2, 7

Ne 2, 8

Na 2, 8, 1

Mg 2, 8, 2

Al 2, 8, 3

Si 2, 8, 4

P 2, 8, 5

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