Question

→ Find out examples of elements in such different states with the help of the periodic tables?​

Answer 1

Answer:

Solid – Li, Be, B, C, Na, Mg, Al, Si

Liquid – Br

Gas – H, He, N, O, F, Ne

Answer 2

Answer:

The First 20 elements in the periodic table. Here they are:

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