B

BORON

Defition :From "Borax" or carbon. It is most common in borax(sodium borate). A trace element needed for plant growth, but can be toxic in excess.

Discovery :1808, by J.G Lussac and L. Thenard of france and Sir Davy of britain.

Uses :Tennis rackets, Glasses, Arthritis treatment, Pyrotechnic flares

Group of Elements :Metalloids/Semi-metals(Solid)

Atomic Weight :10.806; 10.821

Oxidation State :+3

Melting Point :2300

Boiling Point :2550

Density :2.35 g/cm3

Electronegativity :2.0