Question

What are the first 20 elements of the periodic table

Answer 1

Answer:

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Hydrogen

H

Helium

He

Lithium

Li

Beryllium

Be

Boron

B

Carbon

C

Oxygen

O

Nitrogen

N

Fluorine

F

Neon

Ne

Sodium

Na

Magnesium

Mg

Aluminum

Al

Silicon

Si

Phosphorus

P

Sulfur

S

Chlorine

Cl

Argon

Ar

Potassium

K

Calcium

Ca

Answer 2

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—Aluminum

14. Si—Silicon

15. P—Phosphorus

16. S—Sulphur

17. Cl—Chlorine

18. Ar—Argon

19. K—Potassium

20. Ca—Calcium

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