Question

right and number 20 elements name and atomic numbers with symbols​

Answer 1

Answer:

1) Hydrogen

2) Helium

3)Lithium

4)Berilium

5) Boron

6) Carbon

7) Nitrogen

8) Oxygen

9) Fluorine

10) Neon

Answer 2

Answer:

First 20 Elements

Atomic Number Element Symbol

17 Chlorine Cl

18 Argon Ar

19 Potassium K

20 Calcium Ca

Explanation:

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