Chromium (Cr)

Chromium is the 24th element in the periodic table and has a symbol of Cr and atomic number of 24. It has an atomic weight of 51.9961 and a mass number of 52. Chromium has twenty-four protons and twenty-eight neutrons in its nucleus, and twenty-four electrons in four shells. It is located in group six, period four and block d of the periodic table. Hard silvery transition element. Used in decorative electroplating. Discovered in 1797 by Vauquelin.

Atomic Number	24
Atomic Weight	51.9961
Mass Number	52

Group	6
Period	4
Block	d

Protons	24 p⁺
Neutrons	28 n⁰
Electrons	24 e^-

Properties

Physical Properties
Atomic Radius	140 pm 233 pm
Molar Volume	7.23 cm³/mol
Covalent Radius	122 pm 111 pm 103 pm 140 pm 139 pm
Metallic Radius	119 pm 128 pm
Ionic Radius	73 pm 80 pm 61.5 pm 41 pm 55 pm 34.5 pm 49 pm 57 pm 26 pm 44 pm
Crystal Radius	87 pm 94 pm 75.5 pm 55 pm 69 pm 48.5 pm 63 pm 71 pm 40 pm 58 pm
Van der Waals Radius	205 pm 206 pm 225 pm 302.3 pm
Density	7.15 g/cm³ 6,300 kg/m³
Energy
Proton Affinity	791.3 kJ/mol
Electron Affinity	0.666 eV/particle
Ionization Energy	6.76651 eV/particle 16.486305 eV/particle 30.96 eV/particle 49.16 eV/particle 69.46 eV/particle 90.635 eV/particle 160.29 eV/particle 184.76 eV/particle 209.54 eV/particle 244.52 eV/particle 270.8 eV/particle 296.74 eV/particle 354.66 eV/particle 384.163 eV/particle 1,011.62 eV/particle 1,097.2 eV/particle 1,188 eV/particle 1,294.8 eV/particle 1,394.5 eV/particle 1,495.1 eV/particle 1,634 eV/particle 1,721.183 eV/particle 7,481.8625 eV/particle 7,894.799 eV/particle

Heat of Vaporization	342 kJ/mol
Heat of Fusion	21 kJ/mol
Heat of Formation	397.48 kJ/mol
Electrons
Electron Shells	2, 8, 13, 1

Valence Electrons	1 ⓘ

Electron Configuration	[Ar] 3d⁵ 4s¹ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹

Oxidation States	-4, -2, -1, 0, 1, 2, 3, 4, 5, 6
Electronegativity	9.77 eV/particle 0.1313053 1.66
Electrophilicity Index	1.1319177597467263 eV/particle
States of Matter
Phase	Solid
Gas Phase
Boiling Point	2,944.15 K
Melting Point	2,180.15 K
Critical Pressure
Critical Temperature
Triple Point
Visual
Chromium is a Silver. Cr has a CPK of #808090, Jmol of #8a99c7, and MOLCAS GV of #8a99c7. The Appearance of Element 24 is silvery metallic.
Color	Silver #808090 #8a99c7 #8a99c7
Appearance	silvery metallic
Refractive Index
Thermodynamic Properties
Thermal Conductivity	93.9 W/(m K)
Thermal Expansion	0.0000049 1/K
Molar Heat Capacity	23.35 J/(mol K)
Specific Heat Capacity	0.449 J/(g⋅K)
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type	Conductor
Electrical Conductivity	7.9 MS/m
Electrical Resistivity	0.00000013 m Ω
Superconducting Point
Magnetism
Type	antiferromagnetic
Magnetic Susceptibility (Mass)	0.0000000445 m³/Kg
Magnetic Susceptibility (Molar)	0.000000002314 m³/mol
Magnetic Susceptibility (Volume)	0.0003177
Magnetic Ordering
Curie Point
Neel Point	393 K
Structure
The Crystal Structure of Chromium is BCC. The lattice constant of Cr is 2.88 Å. The lattice angles of Element 24 are π/2, π/2, π/2.
Crystal Structure	Body Centered Cubic (BCC)
Lattice Constant	2.88 Å
Lattice Angles	π/2, π/2, π/2
Mechanical Properties
Chromium has a Brinell of 1120 MPa, Mohs hardness of 8.5 MPa, and Vickers of 1060 MPa. The Bulk Modulus of Cr is 160 GPa. The Shear Modulus of Element 24 is 115 GPa. The Young Modulus of Chromium (Cr) is 279 GPa. The Poisson Ratio of Chromium is 0.21. The Speed of Sound of Cr is 5940 m/s.
Hardness	1,120 MPa 8.5 MPa 1,060 MPa
Bulk Modulus	160 GPa
Shear Modulus	115 GPa
Young's Modulus	279 GPa
Poisson Ratio	0.21
Speed of Sound	5,940 m/s
Classification
The CAS Group of Chromium is VIA. The IUPAC Group of Cr is VIB. The Glawe Number of Element 24 is 55. The Mendeleev Number of Chromium (Cr) is 51. The Pettifor Number of Chromium is 57. The Geochemical Class of Cr is first series transition metal. The Goldschmidt Class of Element 24 is litophile.
Category	Transition metals, Transition metals
CAS Group	VIA
IUPAC Group	VIB
Glawe Number	55
Mendeleev Number	51
Pettifor Number	57
Geochemical Class	first series transition metal
Goldschmidt Class	litophile
Other
The Gas Basicity of Chromium is 768.4 kJ/mol. The Dipole Polarizability of Cr is 83 plus or minus 12 a₀. Element 24 has a C6 Dispersion Coefficient (CD) of 602 a₀, and C6 Dispersion Coefficient (GB) of 709 a₀. The Allotropes of Chromium (Cr) is . The Neutron Cross Section of Chromium is 3.1. The Neutron Mass Absorption of Cr is 0.0021. The Quantum Numbers of Element 24 is 7S3. The Space Group of Chromium (Cr) is 229 (Im_3m).
Gas Basicity	768.4 kJ/mol
Dipole Polarizability	83 ± 12 a₀
C6 Dispersion Coefficient	602 a₀ 709 a₀
Allotropes
Neutron Cross Section	3.1
Neutron Mass Absorption	0.0021
Quantum Numbers	7S3
Space Group	229 (Im_3m)

Isotopes of Chromium

Stable Isotopes	3
Unstable Isotopes	27
Radioactive Isotopes	27

⁴¹Cr

Mass Number	41
Neutron Number	17
Relative Atomic Mass	41.021911 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	3/2
Quadrupole Moment
Discovery Year
Parity	+

Decay Mode	Intensity
p (proton emission)

⁴²Cr

Mass Number	42
Neutron Number	18
Relative Atomic Mass	42.007579 ± 0.000322 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	13.3 ± 1 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1996
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	94.4%
2p (2-proton emission)

⁴³Cr

Mass Number	43
Neutron Number	19
Relative Atomic Mass	42.997885 ± 0.000215 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	21.1 ± 0.3 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1992
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	79.3%
2p (2-proton emission)	11.6%
3p	0.13%
β⁺α (β⁺-delayed α emission)

⁴⁴Cr

Mass Number	44
Neutron Number	20
Relative Atomic Mass	43.985591 ± 0.000055 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	42.8 ± 0.6 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1987
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	12%

⁴⁵Cr

Mass Number	45
Neutron Number	21
Relative Atomic Mass	44.97905 ± 0.000038 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	60.9 ± 0.4 ms
Spin	7/2
Quadrupole Moment
Discovery Year	1974
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	34.4%

⁴⁶Cr

Mass Number	46
Neutron Number	22
Relative Atomic Mass	45.968360969 ± 0.000012295 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	224.3 ± 1.3 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1972
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁴⁷Cr

Mass Number	47
Neutron Number	23
Relative Atomic Mass	46.962894995 ± 0.000005578 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	461.6 ± 1.5 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1972
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁴⁸Cr

Mass Number	48
Neutron Number	24
Relative Atomic Mass	47.954029431 ± 0.000007848 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	21.56 ± 0.03 h
Spin	0
Quadrupole Moment	0
Discovery Year	1952
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁴⁹Cr

Mass Number	49
Neutron Number	25
Relative Atomic Mass	48.95133372 ± 0.000002363 Da
G-Factor	0.1904 ± 0.0012
Abundance
Radioactivity	☢️ Radioactive
Half Life	42.3 ± 0.1 m
Spin	5/2
Quadrupole Moment
Discovery Year	1942
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁵⁰Cr

Mass Number	50
Neutron Number	26
Relative Atomic Mass	49.946042209 ± 0.0000001 Da
G-Factor	0
Abundance	4.345 ± 0.013
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1930
Parity	+

Decay Mode	Intensity
2β⁺ (double β⁺ decay)

⁵¹Cr

Mass Number	51
Neutron Number	27
Relative Atomic Mass	50.944765388 ± 0.000000178 Da
G-Factor	0.26685714285714 ± 0.0014285714285714
Abundance
Radioactivity	☢️ Radioactive
Half Life	27.7015 ± 0.0011 d
Spin	7/2
Quadrupole Moment
Discovery Year	1940
Parity	-

Decay Mode	Intensity
ϵ (electron capture)	100%

⁵²Cr

Mass Number	52
Neutron Number	28
Relative Atomic Mass	51.940504714 ± 0.00000012 Da
G-Factor	0
Abundance	83.789 ± 0.018
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1923
Parity	+

⁵³Cr

Mass Number	53
Neutron Number	29
Relative Atomic Mass	52.940646304 ± 0.000000124 Da
G-Factor
Abundance	9.501 ± 0.017
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	3/2
Quadrupole Moment	-0.15 ± 0.05
Discovery Year	1930
Parity	-

⁵⁴Cr

Mass Number	54
Neutron Number	30
Relative Atomic Mass	53.938877359 ± 0.000000142 Da
G-Factor	0
Abundance	2.365 ± 0.007
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1930
Parity	+

⁵⁵Cr

Mass Number	55
Neutron Number	31
Relative Atomic Mass	54.940836637 ± 0.000000245 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	3.497 ± 0.003 m
Spin	3/2
Quadrupole Moment
Discovery Year	1952
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁵⁶Cr

Mass Number	56
Neutron Number	32
Relative Atomic Mass	55.940648977 ± 0.00000062 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	5.94 ± 0.1 m
Spin	0
Quadrupole Moment	0
Discovery Year	1960
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁵⁷Cr

Mass Number	57
Neutron Number	33
Relative Atomic Mass	56.943612112 ± 0.000002 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	21.1 ± 1 s
Spin	3/2
Quadrupole Moment
Discovery Year	1978
Parity

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁵⁸Cr

Mass Number	58
Neutron Number	34
Relative Atomic Mass	57.944184501 ± 0.0000032 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	7 ± 0.3 s
Spin	0
Quadrupole Moment	0
Discovery Year	1980
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁵⁹Cr

Mass Number	59
Neutron Number	35
Relative Atomic Mass	58.948345426 ± 0.00000072 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	1,050 ± 90 ms
Spin	1/2
Quadrupole Moment	0
Discovery Year	1980
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁶⁰Cr

Mass Number	60
Neutron Number	36
Relative Atomic Mass	59.949641656 ± 0.0000012 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	490 ± 10 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1980
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶¹Cr

Mass Number	61
Neutron Number	37
Relative Atomic Mass	60.95437813 ± 0.000002 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	243 ± 9 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1985
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶²Cr

Mass Number	62
Neutron Number	38
Relative Atomic Mass	61.95614292 ± 0.0000037 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	206 ± 12 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1985
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶³Cr

Mass Number	63
Neutron Number	39
Relative Atomic Mass	62.961161 ± 0.000078 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	129 ± 2 ms
Spin	1/2
Quadrupole Moment	0
Discovery Year	1992
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶⁴Cr

Mass Number	64
Neutron Number	40
Relative Atomic Mass	63.963886 ± 0.000322 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	43 ± 1 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1992
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁶⁵Cr

Mass Number	65
Neutron Number	41
Relative Atomic Mass	64.969608 ± 0.000215 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	27.5 ± 2.1 ms
Spin	1/2
Quadrupole Moment	0
Discovery Year	1997
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁶⁶Cr

Mass Number	66
Neutron Number	42
Relative Atomic Mass	65.973011 ± 0.000322 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	23.8 ± 1.8 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1997
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁶⁷Cr

Mass Number	67
Neutron Number	43
Relative Atomic Mass	66.979313 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	1/2
Quadrupole Moment	0
Discovery Year	1997
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁶⁸Cr

Mass Number	68
Neutron Number	44
Relative Atomic Mass	67.983156 ± 0.000537 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	2009
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁶⁹Cr

Mass Number	69
Neutron Number	45
Relative Atomic Mass	68.989662 ± 0.000537 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	7/2
Quadrupole Moment
Discovery Year	2013
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁷⁰Cr

Mass Number	70
Neutron Number	46
Relative Atomic Mass	69.993945 ± 0.000644 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	2013
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

History

In 1797, Louis Nicolas Vauquelin received samples of crocoite ore. In 1798, Vauquelin discovered that he could isolate metallic chromium by heating the oxide in a charcoal oven, making him the discoverer of the element. Vauquelin was also able to detect traces of chromium in precious gemstones, such as ruby or emerald. From the Greek word chroma, color

Discoverers	Louis Vauquelin
Discovery Location	France
Discovery Year	1797
Etymology (Name Origin)	Greek: chrôma (color).
Pronunciation	KROH-mi-em (English)

In larger amounts, chromium can be toxic and carcinogenic

Chromium oxide was used by the Chinese in the Qin dynasty over 2,000 years ago

Uses

Chromium is used to harden steel, manufacture stainless steel, and form many useful alloys. It is mostly used in plating to produce a hard, beautiful surface and to prevent corrosion. The metal is also widely used as a catalyst. Chromium compounds are valued as pigments for their vivid green, yellow, red and orange colors. Used to make stainless steel. It gives the color to rubies and emeralds. Iron-nickel-chromium alloys in various percentages yield an incredible variety of the most important metals in modern technology.

Sources

Chromite [Fe,Mg(CrO4)] is its most important mineral. Produced commercially by heating its ore in the presence of silicon or aluminium.

Abundance
Abundance in Earth's crust	102 mg/kg
Natural Abundance (Oceans)	0.0003 mg/L
Natural Abundance (Human Body)	0.000003 %
Natural Abundance (Meteor)	0.3 %
Natural Abundance (Sun)	0.002 %
Abundance in Universe	0.0015 %

Nuclear Screening Constants

1	s	0.5862
2	p	3.9248
2	s	7.0162
3	d	14.2434
3	p	12.534
3	s	11.6322
4	s	18.8668

Also Known As

Cr
element 24
24Cr

Translations

Italiancromo
Norwegian Bokmålkrom
GermanChrom
Frenchchrome
Dutchchroom
Spanishcromo
Chinese (Traditional)鉻
Afrikaanschroom
Amharicክሮሚየም
AragoneseCromo
Arabicكروم
AsturianCromu
AzerbaijaniXrom
BelarusianХром
Bulgarianхром
Banglaক্রোমিয়াম
BretonKrom
Bosnianhrom
Catalancrom
CorsicanCromu
Czechchrom
ChuvashХром
WelshCromiwm
Danishkrom
Divehiކްރޯމިއަމް
Greekχρώμιο
Esperantokromo
Estoniankroom
Basquekromo
Persianکروم
Finnishkromi
FriulianCrom
IrishCróimiam
Galiciancromo
Manxcromium
Hakka Chinesechromium
Hebrewכרום
Hindiक्रोमियम
Fiji HindiChromium
Croatiankrom
Upper SorbianChrom
Haitian CreoleKwòm
Hungariankróm
Armenianքրոմ
Interlinguachromo
Indonesiankromium
Idokromo
Icelandickróm
Japaneseクロム
Lojbanrogjinme
Georgianქრომი
Kannadaಕ್ರೋಮಿಯಮ್
Korean크로뮴
KurdishKrom
KomiХром
Latinchromium
LuxembourgishChrom
LigurianCrommo
Lithuanianchromas
Latvianhroms
Maorikonukita
Macedonianхром
Malayalamക്രോമിയം
Mongolianхром
Marathiक्रोमियम
Western MariХром
MalayKromium
Burmeseခရိုမီယမ်
nahTlapāltepoztli
Low GermanChrom
Norwegian Nynorskkrom
OccitanCròme
Punjabiਕ੍ਰੋਮੀਅਮ
Polishchrom
pnbکرومیم
Portuguesecromo
QuechuaKrumu
Romaniancrom
Russianхром
Siciliancromu
Serbo-CroatianHrom
Slovakchróm
Sloveniankrom
AlbanianKromi
Serbianхром
Saterland FrisianChrom
Swedishkrom
SwahiliChromi
Tamilகுரோமியம்
Teluguక్రోమియం
Thaiโครเมียม
Turkishkrom
Uyghurخروم
Ukrainianхром
UzbekXrom
VepsHrom
Vietnamesechromi
WarayCromo
KalmykХром
Yiddishכראם
YorubaKrómíọ̀mù
Chinese鉻
English (Canada)chromium
English (United Kingdom)chromium
Portuguese (Brazil)cromo
Cantonese鉻
KazakhХром
TagalogKromyo
CebuanoKromyo
Central Kurdishکرۆم
Northern FrisianKroom
Odiaକ୍ରୋମିୟମ
Gujaratiક્રોમિયમ
PiedmonteseCròm
TatarХром
Scotschromium
Newariक्रोमियम
Literary Chinese鉻
Belarusian (Taraskievica orthography)Хром
ErzyaХром
SomaliKoroomiyaam
German (Austria)Chrom
German (Switzerland)Chrom
Chinese (Hong Kong SAR China)鉻
Chinese (Taiwan)鉻
Chinese (China)铬
Chinese (Simplified)铬
AromanianCromu
Sanskritक्रोमियम
KyrgyzХром
SardinianCromu
LimburgishChroeam
cdoGáuk
FaroeseKrom
LombardCróm
Maltesekromju
Nepaliक्रोमियम
Paliक्रोमियम
Min Nan ChineseChromium
Bhojpuriक्रोमियम
Tibetanཀོ་ལྕགས།
SundaneseKromium
Lingua Franca Novacromo
oloHrom
Wu Chinese铬
Urduکرومیئم
kbpKurom
TajikХром
JavaneseKromiyum
BavarianChrom
Scottish GaelicCròmium
KotavaVogel
Moroccan Arabicكروم
Egyptian Arabicكروم
Pashtoکروميم
lldCrom
CornishKromiom
bclKromyo
MinangkabauKromium
BalineseKromium
GandaKolomiyaamu
MalagasyKrômia
blkခရိုမီယမ်
ZuluUmChiyangqwala

Chromium on ChemicalAid

ASC Leiden Thesaurus ID	294904409
Art & Architecture Thesaurus ID	300011019
Australian Educational Vocabulary ID	scot/3730
BNCF Thesaurus ID	22189
Bibliothèque nationale de France ID	12104829h
Brockhaus Enzyklopädie online ID	chrom
CAS Registry Number	7440-47-3
Canadian Encyclopedia article ID	chromium
ChEBI ID	28073
DSSTOX compound identifier	DTXCID1011022
DSSTox substance ID	DTXSID3031022
DrugBank ID	11136
ECHA Substance Infocard ID	100.028.324
Encyclopedia of China ID (Second Edition)	204079
Encyclopædia Britannica Online ID	science/chromium
Encyclopædia Universalis ID	chrome
Europeana Fashion Vocabulary ID	10554
Freebase ID	/m/025tkr6
French Vikidia ID	Chrome
GND ID	4147944-0
Great Russian Encyclopedia Online ID	4671100
Grove Art Online ID	T017513
HSDB ID	910
ICSC ID	0029
IEDB Epitope ID	114071
InChI	InChI=1S/Cr
InChIKey	VYZAMTAEIAYCRO-UHFFFAOYSA-N
KBpedia ID	Chromium
KEGG ID	C06268
Krugosvet article	nauka_i_tehnika/himiya/HROM.html
Latvian National Encyclopedia Online ID	145861
Library of Congress authority ID	sh85025350
MeSH descriptor ID	D002857
Mindat mineral ID	1037
NDF-RT ID	N0000146088
NDL Authority ID	00567040
NE.se ID	cr-(krom)
NKCR AUT ID	ph119207
Namuwiki ID	크로뮴
National Library of Israel J9U ID	987007286324805171
OmegaWiki Defined Meaning	585
OpenAlex ID	C511782168
OpenAlex ID	C2909514155
PSH ID	5768
Pixiv Encyclopedia ID	クロム
Probes And Drugs ID	PD061009
PubChem CID	23976
Quora topic ID	Chromium-element
RKD thesaurus ID	92666
RxNorm ID	2496
STW Thesaurus for Economics ID	14295-6
Spanish Cultural Heritage thesauri ID	materias/1000922
Spanish Vikidia ID	Cromo
Store norske leksikon ID	krom
Treccani ID	cromo
U.S. National Archives Identifier	10646811
UK Archival Thesaurus ID	f2/mt225/4347/7866
UK Parliament thesaurus ID	9168
UNII	0R0008Q3JB
USGS Thesaurus ID	1429
WikiSkripta ID	12126
Wolfram Language entity code	Entity["Mineral", "Chromium"]
WordNet 3.1 Synset ID	14659270-n
YSO ID	20200
ZVG number	8190

Chromium (Cr)

Properties

Isotopes of Chromium

41Cr

42Cr

43Cr

44Cr

45Cr

46Cr

47Cr

48Cr

49Cr

50Cr

51Cr

52Cr

53Cr

54Cr

55Cr

56Cr

57Cr

58Cr

59Cr

60Cr

61Cr

62Cr

63Cr

64Cr

65Cr

66Cr

67Cr

68Cr

69Cr

70Cr