List of top Chemistry Questions on The Lanthanoids asked in KEAM

Which of the following pair of lanthanide elements have the same atomic radii?

Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of:

The correct order of ionic radii of Ce, La, Pm and Yb in \( +3 \) oxidation state is

Which of the following statement is INCORRECT?

The type of sulphide formed by lanthanoids is

Which of the following lanthanoid has the outer electronic configuration \(4f^7 6s^2\) in its ground state

The lanthanoid with the outer electronic configuration \(4f^7 5d^1 6s^2\) is

The hardest lanthanide element is