Chapter 6.2, Problem 11SSC

Interpretation Introduction

Interpretation:

The factor that determines the blocks of the periodic table needs to be determined.

Concept introduction:

The periodic table has four blocks, s-block, p-block, d-block and f-block. The s-block consists of two groups, group I and II, p-blocks consist of groups from 13 to 18, d-blocks consist of groups 3 to 12 and f-block consists of lanthanides and actinides.

Answer to Problem 11SSC

The energy levels being filled determine the blocks of the periodic table.

Explanation of Solution

The four blocks of the periodic table represents the energy sublevel of atom being filled with the outermost electrons, that is, valence electrons. There are four different energy sublevels, that is s, p, d and f due to which the division of periodic table four distinct blocks takes place.

Conclusion

The s, p, d and f orbital of atoms is the reason of division of periodic table into four blocks.