Question

how to find the electric configuration of Barium by easy trick​

Answer 1

Hey,

Atomic no. of barium:56

Electronic configuration:

1s2,2s2,2p6,3s2,3p6,3d10,4s2,4p6,4d10,5s2,5p6,6s2

OR

[Xe]6s2

I hope it helps you!!!