Write four charac

1. They show variable oxidation states. The reducing character increases down the group and oxidising character increases along the period.

2. They have a high ionisation enthalpy than the s-block elements.

3. They usually form covalent compounds.

4. Both metals and non metals are found in this group, but non metals are slightly more in number. As we go along the period non metal character increases and down the group metallic character increases.