Question

List of all chemical formula made by first 20 elements.​

Answer 1

1. H - Hydrogen
2. He - Helium
3. Li - Lithium
4. Be - Beryllium
5. B - Boron
6. C - Carbon
7. N - Nitrogen
8. O - Oxygen
9. F - Fluorine
10. Ne - Neon
11. Na - Sodium
12. Mg - Magnesium
13. Al - Aluminum
14. Si - Silicon
15. P - Phosphorus
16. S - Sulfur
17. Cl - Chlorine
18. Ar - Argon
19. K - Potassium
20. Ca - Calcium