Question

What is the difference between s-block and f block in the modern periodic table​

Answer 1

Answer:

The s-block and p-block together are usually considered main-group elements, the d-block corresponds to the transition metals, and the f-block encompasses nearly all of the lanthanides (like lanthanum) and the actinides (like actinium). Not everyone agrees on the exact membership of each set of elements.

Answer 2

Answer:

The s-block and p-block together are usually considered main-group elements, the d-block corresponds to the transition metals, and the f-block encompasses nearly all of the lanthanides (like lanthanum) and the actinides (like actinium). ... Groups (columns) in the f-block (between groups 3 and 4) are not numbered.