Chapter 6, Problem 41A

Interpretation Introduction

Interpretation:

The reason of similar properties of chlorine and iodine needs to be explained.

Concept introduction:

Periodic table consists of four blocks, s block, p-block, d-block and f-block. The horizontal rows of the periodic table are termed as periods and vertical column are terms as groups. 18 groups and 7 periods are present the periodic table.

Answer to Problem 41A

The elements chlorine and iodine both belongs to group 17 of periodic table which results similar properties.

Explanation of Solution

In the periodic table, elements of similar physical and chemical properties are grouped.

The periodicity of properties of the elements in any group is due the repetition of the same valence shell electronic configuration after a certain definite gaps of atomic numbers. Chlorine and iodine both belongs to same group, that is, group 17. So, they have similar properties.

Conclusion

All the elements in a group possess similar properties.