Actinoids are mostly attacked by which acid?

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

Which of the following is used as a nuclear fuel?

What is the most common oxidation state of lanthanides?

Which of the following is amphoteric?

Which of the following has the highest atomic number?

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

Sc3+ is a paramagnetic ion.