Periodic table of the elements
SiliconPhosphorusSulfur
15
P
Phosphorus
30.973762
2
8
5
15
P
Phosphorus
30.973762
2
8
5
General
NamePhosphorus
SymbolP
Number15
Chemical seriesOther nonmetals
Group / Period15 / 3
Blockp-block
CAS registry number7723-14-0

Physical properties
Statesolid
Density1.823 g/cm3
Melting point317.3 K (44.2 °C, 111.6 °F)
Boiling point550 K (277 °C, 531 °F)
Critical point

Atomic properties
Atomic Weight30.973762 g/mol
Crystal structure
Electronegativity2.19
Atomic radius100 pm
Atomic radius (calculated)98 pm
Electron configuration[Ne] 3s2 3p3
Electrons per shell2, 8, 5
Number of protons15
Number of neutrons16

Other languages
SpanishFósforo
PortugueseFósforo
FrenchPhosphore
GermanPhosphor
ItalianFosforo
RussianФосфор
PolishFosfor
Chinese
Arabicفوسفور
TurkishFosfor
DutchFosfor


Periodic table of the elements
SiliconPhosphorusSulfur