Question

Write the electron configurations of first five elements

Answer 1

K L M N

Hydrogen 1
Helium 2
Lithium 1 2
Beryllium 1 3
Boron 1 4


thanks 4 asking .

Answer 2

electronic configuration of first five elements is

H =1s1
He=1s^2
Li=1s^2,2s^1
Be=1s^2,2s^2
B=1s^2,2s^2,2p^1