Question

What are d-block and f-block elements?

Hint:

d-block elements show variable oxidation states, while f-block elements are known for their magnetic and spectral properties.

Answer 1

- d-block elements: Elements in which the last electron enters the d-orbital. Examples: Transition metals like Fe, Cu. 

- f-block elements: Elements in which the last electron enters the f-orbital. Examples: Lanthanides and Actinides.