Boron group

The boron group, also known as Group III and Group 13, is a group of elements on the periodic table. Most of its members are poor metals, except for boron. Boron is a semimetal. The rest of the elements are soft metals. 

List
Boron, brittle hard black semimetal (used to make soap)
Aluminium, common soft silvery metal (used to make cans)
Gallium, easily melted silvery metal (used to make mirrors)
Indium, soft silvery metal (used to make solar panels) 
Thallium, highly toxic very soft metal (used to make camera lenses)
Nihonium, unstable manmade element (unknown)

Gallery

13