Which of the following metal is used as a thermometric liquid?

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

Which of the following element is not a transition element?

Actinoids are mostly attacked by which acid?

What is the oxidation state exhibited by actinium?

Sc3+ is a paramagnetic ion.

What is the end product formed when KMnO4 reacts with HCl?

What is the common oxidation state of scandium? (At. No. of Sc = 21)