Page 23 - Electronic Configuration

Example

Draw the orbital diagram and write the

electronic configuration for;

a) Potassium (Z=19)

1s 2s 2p 3s 3p 4s

2
2
6
2
6
Electron configuration: 1s 2s 2p 3s 3p 4s 1
b) Scandium (Z=21)

1s 2s 2p 3s 3p 4s 3d

2
6
2
2
Electron configuration: 1s 2s 2p 3s 3p 4s 3d 1
6
2