1 to 20 element
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Answer:
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 - Aluminium
14. Si - Silicon
15. P - Phosphorus
16. S - Sulphur
17. Cl - Chlorine
18. Ar - Argon
19. K - Potassiun
20. Ca - Calcium
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