Question

Write electronic configuration of an element from atomic number 1 to 18​

Answer 1

answer:

1 Hydrogen H

2 Helium HE

3 Lithium LI

4 Beryllium BE

5 Boron BE

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