Page 21 - Electronic Configuration
P. 21
ELECTRON CONFIGURATION OF
THE TRANSITION ELEMENTS
Transition element partially filled d orbitals.
By applying Aufbau principle:
4s orbital is filled before 3d orbitals.
EXAMPLE: Titanium, Ti (Z = 22)
1s 2s 2p 3s 3p 4s 3d
2
6
2
6
Electron configuration: 1s 2s 2p 3s 3p 4s 3d 2
2
2
