Question

lanthanides and actinides lies in which group and ends in which group ​

Answer 1

Answer:

The lanthanides and actinides form a group that appears almost disconnected from the rest of the periodic table. This is the f block of elements, known as the inner transition series. This is due to the proper numerical position between Groups 2 and 3 of the transition metals.

Answer 2

lanthanides :Cerium (58) to Luterium (71)

Actinides : Thorium. (90) to Lawrencium (103)

Explanation:

The lanthanides and actinides form a group that appears almost disconnected from the rest of the periodic table. This is the f block of elements, known as the inner transition series. This is due to the proper numerical position between Groups 2 and 3 of the transition metals.

Lanthanide are placed in 6th period after La and Actinides are placed in 7th period after Ac in the 'third' group