Boron
Category: metalloid
Atomic number: 5
Atomic weight: 10.8111
Phase: solid
Boron might have a boring name, but it is one of the most versatile chemical elements. It has…….

Carbon
Category: non-metal
Atomic number: 6
Atomic weight: 12.0107
Phase: solid
There are three forms of carbon: graphite, diamond, and fullerenes; the same atoms arranged differently. Graphite crystals are…