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15P

Phosphorus

Nonmetal · 30.97376200 u · group 15, period 3

Phosphorus · P

Identity

Atomic number15

SymbolP

CategoryNonmetal

Standard stateSolid

Group · Period · Block15 · 3 · p

Electron configuration[Ne]3s2 3p3

Atomic

Atomic mass30.97376200 u

Atomic radius180 pm

Protons / Neutrons / Electrons15 / 16 / 15

Shells (e⁻ per shell)2, 8, 5

Chemical

Electronegativity (Pauling)2.19

Ionization energy10.487 eV

Electron affinity0.746 eV

Oxidation states+5, +3, -3

Physical

Melting point317.3 K · 44.2 °C

Boiling point553.6 K · 280.5 °C

Density1.82 g/cm³

History

Year discovered1669

CPK color

#FF8000

State at room temp (25 °C)

solid

Position

Molecules with P

16 in library

Tetraphosphorus

P₄

Phosphorus trichloride

Phosphorus tribromide

Phosphorus oxychloride

Phosphorus trioxide

O₃P₂

Phosphorus pentachloride

Phosphorus pentafluoride

Phosphorus pentoxide

O₅P₂

Phosphoric Acid

Triphenylphosphine

C₁₈H₁₅P

C₁₀H₁₂N₅O₆P

C₁₂H₁₇N₂O₄P

Adenosine Monophosphate

C₁₀H₁₄N₅O₇P

C₁₀H₁₅N₅O₁₀P₂

C₁₀H₁₆N₅O₁₃P₃

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