Question
Comparative study of all the four-blocks of Modern Periodic table.
✓
Answer
| s-block | p-block | d-block | f-block | |
| No. of shells incomplete/ valence electrons | Outermost shell incomplete (1 or 2 valence electrons) | Outermost shell incomplete except zero group elements that have completely filled shells (3 to 8 valence electrons). | Last two shells incomplete. | Last three shells incomplete. |
| Position | Group 1, Group 2 and Hydrogen | Group 13 to Group 17 and zero group | Group 3 to Group 12 | Lanthanides series and actinides series placed separately at the bottom of periodic table. |
| Includes | All metals except hydrogen. | Metals, non-metals, metalloids, zero group elements. | Metals. | Metals. |
| Types of elements | Normal elements | Normal and inert elements. | Transition elements | Inner-transition elements. |
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