Boron

Physical Properties Black Is a solid Has a hardness of

9.5 Metalloid Boils at 2550 Cº Melts at 2300 Cº

Crystalline Structure: Rhombohedral Named after the

rhombus Also known as

trigonal One of the seven

lattice point groups

Atomic Structure Symbol is B Atomic Number: 5 Atomic Weight:

10.81 Number of Protons:

5 Number of

Electrons: 5 Number of

Neutrons: 6

Boron’s Classifications Group: 13 Period: 2 Block: p-block Electron

Configuration:[He]2s²2p¹

Boron Uses Borax is its most

natural form Glass Ceramics Fertilizers Papers Paints Fire Retardants Cleaning

Compounds