Differentiate between lanthanide and actinide series

CBSE Class 11
1

Differentiate between lanthanide and actinide series.

2
Lanthanoid series Actinoid series
i) The sixth period of the periodic table is known as the lanthanoid series. i) The seventh period of the periodic table is known as the actinoid series.
ii) It involves the filling of 6s orbital. ii) It involves the filling of 7s orbital.
iii) It contains 32 elements. iii) It is incomplete.
iv) Due to the filling up of 4f orbitals it constitutes the first f transition series. iv) Due to the filling up of 5f orbitals it constitutes the second f transition series.