Krypton (Kr)

Krypton is the 36th element in the periodic table and has a symbol of Kr and atomic number of 36. It has an atomic weight of 83.798 and a mass number of 84. Krypton has thirty-six protons and forty-eight neutrons in its nucleus, and thirty-six electrons in four shells. It is located in group eighteen, period four and block p of the periodic table. Colorless gaseous element, belongs to the noble gases. Occurs in the air, 0.0001% by volume. It can be extracted from liquid air by fractional distillation. Generally not isolated, but used with other inert gases in fluorescent lamps. Five natural isotopes, and five radioactive isotopes. Kr-85, the most stable radioactive isotope, has a half-life of 10.76 years and is produced in fission reactors. Practically inert, though known to form compounds with Fluorine.

Atomic Number	36
Atomic Weight	83.798
Mass Number	84

Group	18
Period	4
Block	p

Protons	36 p⁺
Neutrons	48 n⁰
Electrons	36 e^-

Physical Properties

Atomic Radius	212 pm
Molar Volume	32.2 cm³/mol
Covalent Radius	117 pm 121 pm 108 pm 116 pm
Metallic Radius
Ionic Radius
Crystal Radius
Van der Waals Radius	202 pm 202 pm 215 pm 414.1 pm
Density	0.003425 g/cm³

Chemical Properties

Energy

Proton Affinity	424.6 kJ/mol
Electron Affinity
Ionization Energy	13.9996049 eV/particle 24.35984 eV/particle 35.67 eV/particle 50.85 eV/particle 64.69 eV/particle 78.49 eV/particle 109.13 eV/particle 125.8024 eV/particle 233 eV/particle 268 eV/particle 308 eV/particle 350 eV/particle 391 eV/particle 446 eV/particle 492 eV/particle 540 eV/particle 591 eV/particle 640 eV/particle 785 eV/particle 831.64 eV/particle 882.8 eV/particle 945 eV/particle 999 eV/particle 1,042 eV/particle 1,155 eV/particle 1,205.233 eV/particle 2,928.9 eV/particle 3,072 eV/particle 3,228 eV/particle 3,380 eV/particle 3,584 eV/particle 3,752 eV/particle 3,971 eV/particle 4,109.083 eV/particle 17,296.42 eV/particle 17,936.208 eV/particle

Heat of Vaporization	9.05 kJ/mol
Heat of Fusion
Heat of Formation
Electrons

Electron Shells	2, 8, 18, 8

Valence Electrons	8 ⓘ

Electron Configuration	[Ar] 3d¹⁰ 4s² 4p⁶ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶

Oxidation States	0, 1, 2
Electronegativity	17.54 eV/particle 0.2584813
Electrophilicity Index
States of Matter

Phase	Gas
Gas Phase	Monoatomic
Boiling Point	119.735 K
Melting Point	115.78 K
Critical Pressure	5.525 MPa
Critical Temperature	209.48 K
Triple Point	115.775 K 73.53 kPa
Visual
Krypton is a Colorless. Kr has a CPK of #ff1493, Jmol of #5cb8d1, and MOLCAS GV of #5cb8d1. The Appearance of Element 36 is colorless gas, exhibiting a whitish glow in a high electric field. The Refractive Index of Krypton (Kr) is 1.000427.
Color	Colorless #ff1493 #5cb8d1 #5cb8d1
Appearance	colorless gas, exhibiting a whitish glow in a high electric field
Refractive Index	1.000427
Thermodynamic Properties
Thermal Conductivity	0.0095 W/(m K)
Thermal Expansion
Molar Heat Capacity	20.786 J/(mol K)
Specific Heat Capacity	0.248 J/(g⋅K)
Heat Capacity Ratio (Adiabatic Index)	5/3
Electrical Properties
Type
Electrical Conductivity
Electrical Resistivity
Superconducting Point
Magnetism
Type	diamagnetic
Magnetic Susceptibility (Mass)	-0.0000000044 m³/Kg
Magnetic Susceptibility (Molar)	-0.000000000369 m³/mol
Magnetic Susceptibility (Volume)	-0.0000000165
Magnetic Ordering
Curie Point
Neel Point
Structure
The Crystal Structure of Krypton is FCC. The lattice constant of Kr is 5.72 Å. The lattice angles of Element 36 are π/2, π/2, π/2.
Crystal Structure	Face Centered Cubic (FCC)
Lattice Constant	5.72 Å
Lattice Angles	π/2, π/2, π/2
Mechanical Properties
The Speed of Sound of Krypton is 1120 m/s.
Hardness
Bulk Modulus
Shear Modulus
Young's Modulus
Poisson Ratio
Speed of Sound	1,120 m/s
Classification
The CAS Group of Krypton is VIII. The IUPAC Group of Kr is VIIIA. The Glawe Number of Element 36 is 4. The Mendeleev Number of Krypton (Kr) is 115. The Pettifor Number of Krypton is 4. The Geochemical Class of Kr is volatile. The Goldschmidt Class of Element 36 is atmophile.
Category	Noble gases, Noble gases
CAS Group	VIII
IUPAC Group	VIIIA
Glawe Number	4
Mendeleev Number	115
Pettifor Number	4
Geochemical Class	volatile
Goldschmidt Class	atmophile

Other

The Gas Basicity of Krypton is 402.4 kJ/mol. The Dipole Polarizability of Kr is 16.78 plus or minus 0.02 a₀. Element 36 has a C6 Dispersion Coefficient (CD) of 130 a₀, and C6 Dispersion Coefficient (GB) of 136 a₀. The Allotropes of Krypton (Kr) is . The Neutron Cross Section of Krypton is 25. The Neutron Mass Absorption of Kr is 0.013. The Quantum Numbers of Element 36 is 1S0. The Space Group of Krypton (Kr) is 225 (Fm_3m).

Gas Basicity	402.4 kJ/mol
Dipole Polarizability	16.78 ± 0.02 a₀
C6 Dispersion Coefficient	130 a₀ 136 a₀
Allotropes
Neutron Cross Section	25
Neutron Mass Absorption	0.013
Quantum Numbers	1S0
Space Group	225 (Fm_3m)

Isotopes of Krypton

Stable Isotopes	4
Unstable Isotopes	31
Natural Isotopes	6

⁶⁷Kr

Mass Number	67
Neutron Number	31
Relative Atomic Mass	66.983305 ± 0.000455 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	7.4 ± 2.9 ms
Spin	3/2
Quadrupole Moment
Discovery Year	2016
Parity	-

Decay Mode	Intensity
2p (2-proton emission)	37%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

⁶⁸Kr

Mass Number	68
Neutron Number	32
Relative Atomic Mass	67.972489 ± 0.000537 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	21.6 ± 3.3 ms
Spin	0
Quadrupole Moment	0
Discovery Year	2016
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)	90%
p (proton emission)

⁶⁹Kr

Mass Number	69
Neutron Number	33
Relative Atomic Mass	68.965496 ± 0.000322 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	27.9 ± 0.8 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1995
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	94%

⁷⁰Kr

Mass Number	70
Neutron Number	34
Relative Atomic Mass	69.955877 ± 0.000215 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	45 ± 0.14 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1995
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	1.3%

⁷¹Kr

Mass Number	71
Neutron Number	35
Relative Atomic Mass	70.950265695 ± 0.000138238 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	98.8 ± 0.3 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1981
Parity

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	2.1%

⁷²Kr

Mass Number	72
Neutron Number	36
Relative Atomic Mass	71.942092406 ± 0.0000086 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	17.16 ± 0.18 s
Spin	0
Quadrupole Moment	0
Discovery Year	1973
Parity	+

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

⁷³Kr

Mass Number	73
Neutron Number	37
Relative Atomic Mass	72.939289193 ± 0.000007061 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	27.3 ± 1 s
Spin	3/2
Quadrupole Moment
Discovery Year	1972
Parity

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	0.25%

⁷⁴Kr

Mass Number	74
Neutron Number	38
Relative Atomic Mass	73.933084016 ± 0.000002161 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	11.5 ± 0.11 m
Spin	0
Quadrupole Moment	0
Discovery Year	1960
Parity	+

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

⁷⁵Kr

Mass Number	75
Neutron Number	39
Relative Atomic Mass	74.930945744 ± 0.0000087 Da
G-Factor	-0.2124 ± 0.0016
Abundance
Radioactivity	☢️ Radioactive
Half Life	4.6 ± 0.07 m
Spin	5/2
Quadrupole Moment	1.137 ± 0.013
Discovery Year	1960
Parity	+

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

⁷⁶Kr

Mass Number	76
Neutron Number	40
Relative Atomic Mass	75.925910743 ± 0.000004308 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	14.8 ± 0.1 h
Spin	0
Quadrupole Moment	0
Discovery Year	1954
Parity	+

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

⁷⁷Kr

Mass Number	77
Neutron Number	41
Relative Atomic Mass	76.924669999 ± 0.0000021 Da
G-Factor	-0.2332 ± 0.0012
Abundance
Radioactivity	☢️ Radioactive
Half Life	72.6 ± 0.9 m
Spin	5/2
Quadrupole Moment	0.948 ± 0.01
Discovery Year	1948
Parity	+

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

⁷⁸Kr

Mass Number	78
Neutron Number	42
Relative Atomic Mass	77.920366341 ± 0.000000329 Da
G-Factor	0
Abundance	0.355 ± 0.003
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

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

⁷⁹Kr

Mass Number	79
Neutron Number	43
Relative Atomic Mass	78.920082919 ± 0.000003736 Da
G-Factor	1.072 ± 0.004
Abundance
Radioactivity	☢️ Radioactive
Half Life	35.04 ± 0.1 h
Spin	1/2
Quadrupole Moment	0
Discovery Year	1948
Parity	-

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

⁸⁰Kr

Mass Number	80
Neutron Number	44
Relative Atomic Mass	79.91637794 ± 0.000000745 Da
G-Factor	0
Abundance	2.286 ± 0.01
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

⁸¹Kr

Mass Number	81
Neutron Number	45
Relative Atomic Mass	80.916589703 ± 0.000001152 Da
G-Factor	-0.25914285714286 ± 0.00057142857142857
Abundance
Radioactivity	☢️ Radioactive
Half Life	229 ± 11 ky
Spin	7/2
Quadrupole Moment	0.644 ± 0.004
Discovery Year	1950
Parity	+

Decay Mode	Intensity
ϵ (electron capture)	100%

⁸²Kr

Mass Number	82
Neutron Number	46
Relative Atomic Mass	81.91348115368 ± 0.00000000591 Da
G-Factor	0
Abundance	11.593 ± 0.031
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

⁸³Kr

Mass Number	83
Neutron Number	47
Relative Atomic Mass	82.914126516 ± 0.000000009 Da
G-Factor	-0.21571777777778 ± 0.00000066666666666667
Abundance	11.5 ± 0.019
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	9/2
Quadrupole Moment	0.259 ± 0.001
Discovery Year	1920
Parity	+

⁸⁴Kr

Mass Number	84
Neutron Number	48
Relative Atomic Mass	83.91149772708 ± 0.0000000041 Da
G-Factor	0
Abundance	56.987 ± 0.015
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

⁸⁵Kr

Mass Number	85
Neutron Number	49
Relative Atomic Mass	84.91252726 ± 0.000002147 Da
G-Factor	-0.22344444444444 ± 0.000088888888888889
Abundance
Radioactivity	☢️ Radioactive
Half Life	10.728 ± 0.007 y
Spin	9/2
Quadrupole Moment	0.443 ± 0.003
Discovery Year	1940
Parity	+

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

⁸⁶Kr

Mass Number	86
Neutron Number	50
Relative Atomic Mass	85.91061062468 ± 0.00000000399 Da
G-Factor	0
Abundance	17.279 ± 0.041
Radioactivity	☢️ Radioactive
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1920
Parity	+

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

⁸⁷Kr

Mass Number	87
Neutron Number	51
Relative Atomic Mass	86.913354759 ± 0.000000264 Da
G-Factor	-0.4088 ± 0.0008
Abundance
Radioactivity	☢️ Radioactive
Half Life	76.3 ± 0.5 m
Spin	5/2
Quadrupole Moment	-0.3 ± 0.003
Discovery Year	1940
Parity	+

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

⁸⁸Kr

Mass Number	88
Neutron Number	52
Relative Atomic Mass	87.914447879 ± 0.0000028 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	2.825 ± 0.019 h
Spin	0
Quadrupole Moment	0
Discovery Year	1939
Parity	+

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

⁸⁹Kr

Mass Number	89
Neutron Number	53
Relative Atomic Mass	88.917835449 ± 0.0000023 Da
G-Factor	-0.22 ± 0.002
Abundance
Radioactivity	☢️ Radioactive
Half Life	3.15 ± 0.04 m
Spin	3/2
Quadrupole Moment	0.166 ± 0.002
Discovery Year	1940
Parity	+

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

⁹⁰Kr

Mass Number	90
Neutron Number	54
Relative Atomic Mass	89.919527929 ± 0.000002 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	32.32 ± 0.09 s
Spin	0
Quadrupole Moment	0
Discovery Year	1951
Parity	+

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

⁹¹Kr

Mass Number	91
Neutron Number	55
Relative Atomic Mass	90.923806309 ± 0.0000024 Da
G-Factor	-0.2332 ± 0.0008
Abundance
Radioactivity	☢️ Radioactive
Half Life	8.57 ± 0.04 s
Spin	5/2
Quadrupole Moment	0.303 ± 0.006
Discovery Year	1951
Parity	+

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

⁹²Kr

Mass Number	92
Neutron Number	56
Relative Atomic Mass	91.926173092 ± 0.0000029 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	1.84 ± 0.008 s
Spin	0
Quadrupole Moment	0
Discovery Year	1951
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.0332%

⁹³Kr

Mass Number	93
Neutron Number	57
Relative Atomic Mass	92.931147172 ± 0.0000027 Da
G-Factor	-0.826 ± 0.004
Abundance
Radioactivity	☢️ Radioactive
Half Life	1.287 ± 0.01 s
Spin	1/2
Quadrupole Moment	0
Discovery Year	1951
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.95%

⁹⁴Kr

Mass Number	94
Neutron Number	58
Relative Atomic Mass	93.934140452 ± 0.000013 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	212 ± 4 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1972
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.11%

⁹⁵Kr

Mass Number	95
Neutron Number	59
Relative Atomic Mass	94.939710922 ± 0.00002 Da
G-Factor	-0.82 ± 0.006
Abundance
Radioactivity	☢️ Radioactive
Half Life	114 ± 3 ms
Spin	1/2
Quadrupole Moment	0
Discovery Year	1994
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.87%
2n (2-neutron emission)

⁹⁶Kr

Mass Number	96
Neutron Number	60
Relative Atomic Mass	95.943014473 ± 0.000020695 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	80 ± 8 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1994
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	3.7%

⁹⁷Kr

Mass Number	97
Neutron Number	61
Relative Atomic Mass	96.949088782 ± 0.00014 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	62.2 ± 3.2 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1997
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	6.7%
2n (2-neutron emission)

⁹⁸Kr

Mass Number	98
Neutron Number	62
Relative Atomic Mass	97.952635 ± 0.000322 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	42.8 ± 3.6 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1997
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	7%
2n (2-neutron emission)

⁹⁹Kr

Mass Number	99
Neutron Number	63
Relative Atomic Mass	98.958776 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	40 ± 11 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1997
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	11%
2n (2-neutron emission)

¹⁰⁰Kr

Mass Number	100
Neutron Number	64
Relative Atomic Mass	99.962995 ± 0.000429 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	12 ± 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)

¹⁰¹Kr

Mass Number	101
Neutron Number	65
Relative Atomic Mass	100.969318 ± 0.000537 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	5/2
Quadrupole Moment
Discovery Year	2010
Parity	+

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

History

Scottish chemist Sir William Ramsay and his assistant English chemist Morris Travers discovered krypton in 1898 in London. They found krypton in the residue left from evaporating nearly all components of liquid air. William Ramsay was awarded the 1904 Nobel Prize in Chemistry for discovery of a series of noble gases, including krypton. From the Greek word kryptos, hidden

Discoverers	Sir William Ramsey, M.W. Travers
Discovery Location	Great Britain
Discovery Year	1898
Etymology (Name Origin)	Greek: kryptos (hidden).
Pronunciation	KRIP-ton (English)

Krypton is considered to be non-toxic

When ionized, krypton gas emits bright white light

Uses

Krypton is used in certain photographic flash lamps for high-speed photography. Krypton-83 has application in magnetic resonance imaging (MRI) for imaging airways. Krypton is used as a filling gas for energy-saving fluorescent lights and as an inert filling gas in incandescent bulbs. Used in lighting products. Some is used as inert filler-gas in incandescent bulbs. Some is mixed with argon in fluorescent lamps. The most important use is in flashing stroboscopic lamps that outline airport runways.

Sources

Forms 1 millionth of the atmosphere. Obtained from production of liquid air.

Abundance
Abundance in Earth's crust	0.0001 mg/kg
Natural Abundance (Oceans)	0.00021 mg/L
Natural Abundance (Human Body)
Natural Abundance (Meteor)
Natural Abundance (Sun)
Abundance in Universe	0.000004 %

Nuclear Screening Constants

1	s	0.7684
2	p	3.953
2	s	9.602
3	d	15.3741
3	p	15.5658
3	s	14.9673
4	p	26.2308
4	s	24.6844

Also Known As

Kr
element 36
36Kr

Translations

Norwegian Bokmålkrypton
Frenchkrypton
Italiankripton
Russianкриптон
GermanKrypton
Dutchkrypton
Spanishkriptón
Danishkrypton
Norwegian Nynorskkrypton
Hungariankripton
Polishkrypton
Afrikaanskripton
Amharicክሪፕተን
AragoneseCriptón
Arabicكريبتون
AzerbaijaniKripton
BelarusianКрыптон
Bulgarianкриптон
Banglaক্রিপ্টন
BretonKripton
Bosniankripton
Catalancriptó
CorsicanKriptone
Czechkrypton
ChuvashКриптон
WelshCrypton
Greekκρυπτό
Esperantokriptono
Estoniankrüptoon
Basquekripton
Persianکریپتون
Finnishkrypton
FriulianCripton
Western FrisianKrypton
IrishCrioptón
Galiciancripton
ManxKrypton
Hakka ChineseKrypton
Hebrewקריפטון
Hindiक्रिप्टन
Fiji HindiKrypton
CroatianKripton
Haitian CreoleKripton
Armenianկրիպտոն
Interlinguakrypton
Indonesiankripton
Idokriptono
Icelandickrypton
Japaneseクリプトン
Lojbanmipnavni
JavaneseKripton
Georgianკრიპტონი
KazakhКриптон
Kannadaಕ್ರಿಪ್ಟಾನ್
Korean크립톤
KomiКриптон
Latinkrypton
LuxembourgishKrypton
LimburgishKrypton
LigurianKripton
LithuanianKriptonas
Latviankriptons
MacedonianКриптон
Malayalamക്രിപ്റ്റോൺ
Marathiक्रिप्टॉन
Western MariКриптон
MalayKripton
Low GermanKrypton
OccitanCripton
Punjabiਕ੍ਰਿਪਟਨ
Western Panjabiکرپٹون
Portuguesecrípton
QuechuaKriptun
Romaniankripton
Siciliancripton
Serbo-CroatianKripton
SlovakKryptón
SlovenianKripton
Serbianкриптон
Saterland FrisianKrypton
Swedishkrypton
SwahiliKriptoni
Tamilகிருப்டான்
Thaiคริปทอน
TagalogKriptono
TurkishKripton
Uyghurكرىپتون
Ukrainianкриптон
UzbekKripton
VepsKripton
Vietnamesekrypton
WarayKripton
KalmykКриптон
Yiddishקריפטאן
YorubaKrypton
Chinese氪
CebuanoKripton
Central Kurdishکریپتۆن
Northern FrisianKrypton
Odiaକ୍ରିପ୍‌ଟନ
Gujaratiક્રિપ્ટોન
TatarКриптон
PiedmonteseKrìpton
Scotskrypton
SomaliKiribtoon
ErzyaКриптон
Literary Chinese氪
Cantonese氪
Belarusian (Taraskievica orthography)крыптон
English (United Kingdom)krypton
Newariक्रिप्टन
AlbanianKriptoni
AromanianKripton
Church SlavicКрѷптонъ
FaroeseKrypton
KyrgyzКриптон
cdoKáik
Burmeseကရစ်ပတွန်
Nepaliक्रिप्टन
Maltesekripton
AsturianCriptón
LombardKripton
Scottish GaelicCriopton
Portuguese (Brazil)criptônio
Gan Chinese氪
Sanskritक्रिप्टान
Bhojpuriक्रिप्टन
Min Nan ChineseKrypton
SinhalaKripton
Mongolianкриптон
Tibetanསྦས་རླུང་།
SundaneseKripton
Mapuchekripton
Lingua Franca Novacripton
kbpKrɩpɩtɔnɩ
Teluguక్రిప్టాన్
Wu Chinese氪
oloKriptounu
Chinese (Traditional)氪
Chinese (Taiwan)氪
TajikКриптон
Chinese (Simplified)氪
SardinianCriptòn
azbکریپتون
BashkirКриптон
Moroccan Arabicكريپتون
German (Switzerland)Krypton
English (Canada)Krypton
Egyptian Arabicكريبتون
Pashtoکرېپټون
BikolKrypton
CornishKrypton
BalineseKripton
Chinese (Hong Kong SAR China)氪
Urduکرپٹون
GandaKeriputooni
Northern Samikrypton
Inari Samikrypton
ZuluUmKhalahwe

Krypton on ChemicalAid

Australian Educational Vocabulary ID	scot/3534
BNCF Thesaurus ID	31853
Biblioteca Nacional de España ID	XX534609
Bibliothèque nationale de France ID	119666366
Brockhaus Enzyklopädie online ID	krypton-20
CAS Registry Number	7439-90-9
ChEBI ID	49696
ChEMBL ID	CHEMBL1233877
ChemSpider ID	5223
DSSTOX compound identifier	DTXCID3047637
DSSTox substance ID	DTXSID5064675
Den Store Danske ID	krypton
ECHA Substance Infocard ID	100.028.271
Encyclopædia Britannica Online ID	science/krypton-chemical-element
Encyclopædia Universalis ID	krypton
FAST ID	989199
Freebase ID	/m/0286yf3
French Vikidia ID	Krypton
GND ID	4165832-2
Great Russian Encyclopedia Online ID	2112653
ICSC ID	0604
InChI	InChI=1S/Kr
InChIKey	DNNSSWSSYDEUBZ-UHFFFAOYSA-N
KBpedia ID	Krypton
Library of Congress authority ID	sh85073327
MeSH descriptor ID	D007726
NALT ID	48590
NDL Authority ID	00567028
NE.se ID	krypton
National Library of Israel J9U ID	987007548341105171
OmegaWiki Defined Meaning	159828
OpenAlex ID	C521692839
PDB ligand ID	KR
PDB structure ID	1C6Q
PDB structure ID	1C6G
PDB structure ID	1C6D
PDB structure ID	1C6J
PDB structure ID	1C61
PDB structure ID	1C67
PDB structure ID	1O1H
PDB structure ID	5D51
PDB structure ID	1C6A
PDB structure ID	1C6M
PDB structure ID	1C64
PDB structure ID	3GKT
PDB structure ID	1QTK
PSH ID	5820
Probes And Drugs ID	PD051789
PubChem CID	5416
Quora topic ID	Krypton-4
Römpp online ID	RD-11-02277
Semantic Scholar topic ID	56681
Store norske leksikon ID	krypton
Treccani ID	cripto
UK Archival Thesaurus ID	f2/mt225/4347/13304
UNII	5I8I620HVX
USGS Thesaurus ID	1487
WordNet 3.1 Synset ID	14667094-n
YSO ID	17370
ZVG number	7360

Krypton (Kr)

Physical Properties

Chemical Properties

Other

Isotopes of Krypton

67Kr

68Kr

69Kr

70Kr

71Kr

72Kr

73Kr

74Kr

75Kr

76Kr

77Kr

78Kr

79Kr

80Kr

81Kr

82Kr

83Kr

84Kr

85Kr

86Kr

87Kr

88Kr

89Kr

90Kr

91Kr

92Kr

93Kr

94Kr

95Kr

96Kr

97Kr

98Kr

99Kr

100Kr

101Kr