Name:  Boron

Atomic Symbol and Mass Number: B [5]

Electron Configuration: [He] 2s  2p

Atomic Radii: 180 pm

Electron Affinity: 26.7 kJ mol-1

Oxidation states: +3, +2, +1, -1, -5

Electronegativity value: 2.04

Elemental Group: Metalloids

Uses and properties:

• Metalloid in polymorphs

• Metallic boron is extremely hard with very high melting point

• Transmits portions of infrared light

• Optimal conductivity at higher room temperatures

• Doping silicon and germanium semiconductors

• Fiberglass making, cleansing fluid, insecticide, herbicide and as a disinfectant (Borax)

• Mild antiseptic and flame retardant (Boric acid)

• Boron nitride ceramics used in high-temperature equipment

• Tank armor and bullet proof vests (Boron carbide)

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Lewis diagram: