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Atomic Number: 15
P
P

Phosphorus

30.9740 u

Category

nonmetal

State at Room Temperature

solid

Electron Configuration

1s² 2s² 2p⁶ 3s² 3p³

Valence Electrons

5

Lewis Dot:•••••

Electronegativity

2.19

Pauling scale

Oxidation States

-3-2-1+1+2+3+4+5

Melting Point

317.3 K

44.15°C

Boiling Point

553.7 K

280.55°C

Density

1.823

g/cm³

Position in Table

Group 15Period 3p-block

Discovery

Historical Information

Discovered byHennig Brand
Year1669

Common Uses

Applications & Industries

Fertilizers, matches, detergents, pesticides

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