Periodic table of the elements
VanadiumChromiumManganese
24
Cr
Chromium
51.9961
2
8
13
1
24
Cr
Chromium
51.9961
2
8
13
1
General
NameChromium
SymbolCr
Number24
Chemical seriesTransition elements
Group / Period6 / 4
Blockd-block
CAS registry number7440-47-3

Physical properties
Statesolid
Density7.19 g/cm3
Melting point2180 K (1907°C, 3465°F)
Boiling point2944 K (2671°C, 4840°F)
Critical point

Atomic properties
Atomic Weight51.9961 g/mol
Crystal structurecubic body centered
Electronegativity1.66
Atomic radius140 pm
Atomic radius (calculated)166 pm
Electron configuration[Ar] 3d5 4s1
Electrons per shell2, 8, 13, 1
Number of protons24
Number of neutrons28

Other languages
SpanishCromo
PortugueseCrómio
FrenchChrome
GermanChrom
ItalianCromo
RussianХром
PolishChrom
Chinese
Arabicكروم
TurkishKrom
DutchChroom


Periodic table of the elements
VanadiumChromiumManganese