Question

write the valencies of elements from atomic no. 1 to 15​

Answer 1

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Valencies of elements from Atomic No. 1 - 15 : -

1. Hydrogen - 1
2. Helium - 0
3. Lithium - 1
4. Beryllium - 2
5. Boron - 3
6. Carbon - 4
7. Nitrogen - 3
8. Oxygen - 2
9. Fluorine - 1
10. Neon - 0
11. Sodium - 1
12. Magnesium - 2
13. Aluminum - 3
14. Silicon - 4
15. Phosphorus - 3

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Answer 2

Answer:

Hydrogen - 1

Helium - 0

Lithium - 1

Beryllium - 2

Boron - 3

Carbon - 4

Nitrogen - 3

Oxygen - 2

Fluorine - 1

Neon - 0

Sodium - 1

Magnesium - 2

Aluminum - 3

Silicon - 4

Phosphorus - 3

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