What is the total number of inner transition elements in the periodic table?

The toatal number of inner transition elements in the periodic table is____________.

Explain the position of inner transition elements in the periodic table

What is the position of the transition elements in the periodic table? Comment in brief?

The total number of inner transition elements present in the 7th period are _________.

The number of transition series in the periodic table are

There are two rows of inner transition elements in the periodic table each containing 14 elements.The reason for this may be

There are two rows of inner transition elements in the periodic table each containing 14 elements.The reason for this may be