Question

The f-block elements are known as ____________.

विकल्प

• Transition elements

• Inner transition elements

• Inert elements

• Representative elements

Answer 1

The f-block elements are known as Inner transition elements.

Explanation:

The elements in which the valence electron enters in anti penultimate energy level i.e., (n - 2) f are known as f-block elements This name is because the position of the valence electron is in the f-orbital. Since the last electron enters into (n - 2)f orbital which is inner to the penultimate shell (For d-block elements), they are also called inner transition elements.