Ncert Exercises & Solutions

An element belongs to 3rd period and group 13 of the periodic table. Which of the following properties will be shown by the element?

1. Good conductor of electricity

2. Liquid, metallic

3. Solid, metallic

4. Solid, non-metallic

(a, c)

Except boron, all elements of groups 13 are metallic. These exists as solid. Being metallic in nature, aluminium is good conductor of electricity.