Question

Write any three differences between d-block and f-block elements.

Hint:

The key difference between the d-block and f-block elements lies in the type of orbitals that are being filled (d-orbitals vs. f-orbitals).

Answer 1

Step 1: Difference between d-block and f-block elements.
1. d-block elements are also known as transition elements, and they are found in groups 3 to 12 of the periodic table. f-block elements are the lanthanides and actinides, and they are placed in the two rows below the main body of the periodic table.
2. d-block elements have incomplete d-orbitals in their valence shell, while f-block elements have incomplete f-orbitals.
3. d-block elements generally exhibit multiple oxidation states, whereas f-block elements mostly show a fixed oxidation state, either +3 or +2 in the case of lanthanides.

Step 2: Conclusion.
Thus, the d-block and f-block elements differ in their position, electron configuration, and oxidation states.