Question

Q-10 a) Write 1 to 20 element name from Periodic table? Also learn Atomic no. and Atomic wt.​

Answer 1

Answer:

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. Sulfur S
17. Chlorine Cl
18. Argon Ar
19. Potassium K
20. Calcium Ca

Explanation:

hope it helps you

Answer 2

$\Large\mathtt\green{ }\huge\underline\mathtt\red{Answer : }$

Hydrogen H

Helium He

Lithium Li

Beryllium Be

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