Question

Compositions of atoms of the first 20 elements with electron Distribution in various shells.

Please send me the answer.​​

Answer 1

Answer:

2, 8 , 8 2

Explanation:

it is electric configuration

Answer 2

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Atomic Number Name of the Element.

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 (Ar)

19 Potassium (K)

20 Calcium (Ca)

Hope it helps U✌️✌️✌️...