Question

write symbols of first 20 elements from a modern periodic table.​

Answer 1

Answer:

The symbols of first 20 elements of Modern Periodic Table are :-

1. H
2. He
3. Li
4. Be
5. B
6. C
7. N
8. O
9. F
10. Ne
11. Na
12. Mg
13. Al
14. Si
15. P
16. S
17. Cl
18. Ar
19. K
20. Ca

Explanation:

1. Hydrogen
2. Helium
3. Lithium
4. Beryllium
5. Boron
6. Carbon
7. Nitrogen
8. Oxygen
9. Fluorine
10. Neon
11. Sodium
12. Magnesium
13. Aluminum
14. Silicon
15. Phosphorus
16. Sulphur
17. Chlorine
18. Argon
19. Potassium
20. Calcium