Question

Give me the all chemical symbols and their valency

Answer 1

Answer:

no. element symbols valency

1. hydrogen H (-1),(1)

2. helium He. 0

3. lithium li 1

4. berilium. be. 2

5. boron. b. -3,3

6. carbon. c. +2,+4

7. nitrogen. n. 5

8. oxygen. o. -2

9. flourine. f. -1,+1

10. neon. ne. 0

11. sodium. na. 1

12. magneisium. mg. 2

13. aluminium. al. +3

14. silicon. si. +4

15.phosphorus. p. +5

16. sulphur. s. -2,+2

17. chlorine. cl. -1,+1

18. argon. ar. 0

19. potesium. k. +1

20.calcium. ca. +2

Explanation:

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