- 1s22s22p63s23p41s^22s^22p^63s^23p^4
- 1s22s22p63s23p33d11s^22s^22p^63s^23p^33d^1
- 1s22s22p63s23p23d21s^22s^22p^63s^23p^23d^2
- 1s22s22p63s13p33d21s^22s^22p^63s^13p^33^d2