



1s2 2s2 2p6 3s2 3p6 3d10 4s2
[Rn] 5f1 6d1 7s2
Use Gizmos and enter picture below.
use 1s^2 2s^2 2p^6......etc.(no commas)
use 1s^2 2s^2 2p^6......etc.(no commas)
use 1s^2 2s^2 2p^6......etc.(no commas)
use [He] 2s^2 2p^6......etc.(no commas)
use [He] 2s^2 2p^6......etc.(no commas)
Use Gizmos and enter a picture from Gizmos below.