P

PHOSPHORUS

Definition From "phosporos" or light-bearer. it has 3 forms white, red, black. Only white and red are commercially important.

Discovery 1669 by Hennig Brand of Germany

Uses Watches, Fireworks, Pesticides

Group of Elements Non-metals(Solid)

Atomic Weight 30.97362

Oxidation State +-3, 5

Melting Point 44.1

Boiling Point 280

Density 1.83 g/cm3

Electronegativity 2.1