Question

me following table shows the elements
represe
resented
by
the letters A, B, C, D, E, F, G and H.
Group. elements
1. A
2. B
13. C
14. D
15. E
16. F
17. G
18. H
Which element has the valency equal to : 3 , 0​

Answer 1

Explanation:

1. hydrogen -1

2. helium- 0

13. aluminium- 3

14. silicon- 4

15. phosphorous- 3,5

16. sulfur- 2

17. chlorine- 1

18. argon- 0

valency 3

aluminum, phosphorus

valency 0

argon,helium