What are the orbital models for these notations?
1s² 2s²2p³

1s² 2s²2p⁶ 3s²3p⁶ 4s²3d²

1s² 2s²2p⁶ 3s²3p⁵

It's a hard concept but once you get it it's easy

Explanation:

1s, Stands for sublevel 1

2s, 2p sublevel 2

3s, 3p, 3d sublevel 3

s can hold 2 electrons

p can hold 6 electrons

d can hold 10 electrons

for orbital notation

S= 1 box (can hold 2 electrons per box)

P= 3 boxes

D= 5 boxes

c8h10 is your answerr