Question

WRITE 1 TO 30 ELEMENTS AND THEIR ATOMIC NUMBER AND VALENCY.

Answer 1

1. Hydrogen atomic no. (1) valency (1)
2. Helium atomic no. (2) valency (0)
3. Lithium atomic no. (3) valency (1)
4. Beryllium   atomic no. (4) valency (2)
5. Boron  atomic no. (5) valency (3)
6. Carbon    atomic no. (6) valency (4)
7. Nitrogen  atomic no. (7) valency (3)
8. Oxygen  atomic no. (8) valency (2)
9. Fluorine  atomic no. (9) valency (1)
10. Neon   atomic no. (10) valency (0)
11. Sodium  atomic no. (11) valency (1)
12. Magnesium atomic no. (12) valency (2)
13. Aluminum   atomic no. (13) valency (3)
14. Silicon   atomic no. (14) valency (4)
15. Phosphorus  atomic no. (15) valency (3,5)
16. Sulfur  atomic no. (16) valency (2)
17. Chlorine   atomic no. (17) valency (1)
18. Argon   atomic no. (18) valency (0)
19. Potassium  atomic no. (19) valency (1)
20. Calcium  atomic no. (20) valency (2)
21. Scandium  atomic no. (21) valency (3)
22. Titanium  atomic no. (22) valency (4)
23. Vanadium   atomic no. (23) valency (5)
24. Chromium  atomic no. (24) valency (3)
25. Manganese  atomic no. (25) valency (2,4)
26. Iron   atomic no. (26) valency (2,3)
27. Cobalt  atomic no. (27) valency (2)
28. Nickel atomic no. (28) valency (2)
29. Copper  atomic no. (29) valency (1,2)
30. Zinc atomic no. (30) valency (2)

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