Which of the following is used as a nuclear fuel?

Which of the following is not a consequence of lanthanide contraction?

Which compound is used in Ultra-violet calibration?

Actinoids are mostly attacked by which acid?

Which isotope of plutonium is used in nuclear bombs?

What is the general electronic configuration of d-block elements?

In lanthanides, Ce changes from +4 to +3 oxidation state.

Which of the following metal does not form a coloured salt?