Which of the following element belongs to the third transition series of the periodic table?

All actinoids are diamagnetic in nature.

Why is there an increase in the atomic radius of transition elements at the end of the period?

Which of the following is the correct order of arrangement of the first five lanthanides according to atomic number?

Which of the following element belongs to the second transition series of the periodic table?

Which of the following element has the highest density among transition metals?

Which of the following is amphoteric?

What is the nature of the transition elements?