Question

In the periodic table while going down in the halogen group ______.

Options

• reactivity will increase.

• electronegativity will increase.

• ionic radius will increase.

• ionisation potential will increase.

Answer 1

In the periodic table while going down in the halogen group ionic radius will increase.

Explanation:

The ionic radius of halide ions increases down the group because each successive ion has an additional electron shell. Halogen reactivity and electronegativity decrease down the group, as does ionisation potential.