Kripton (Kr)

chemical element with symbol Kr and atomic number 36; rare gas

Atomic Number	36
Atomic Weight	83.798
Hejmara baristeyî	84

Group	18
Period	4
Block	p

Proton	36 p⁺
Notron	48 n⁰
Kareva	36 e^-

Physical Property

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 Property

wize

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

enthalpy of vaporization	9,05 kJ/mol
enthalpy of fusion
standard enthalpy of formation
Kareva

electron shell	2, 8, 18, 8

valence electron	8 ⓘ

electron configuration	[Ar] 3d¹⁰ 4s² 4p⁶ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶

oxidation number	0, 1, 2
electronegativity	17,54 eV/particle 0.2584813
Electrophilicity Index
fundamental state of matter

phase of matter	Gas
gaseous state of matter	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
appearance
color	Colorless #ff1493 #5cb8d1 #5cb8d1
appearance	colorless gas, exhibiting a whitish glow in a high electric field
refractive index	1,000427
thermodynamic material property
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	5/3
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
type	diamagnetic
magnetic susceptibility (Mass)	-0,0000000044 m³/Kg
magnetic susceptibility (Molar)	-0,000000000369 m³/mol
magnetic susceptibility (Volume)	-0,0000000165
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal Structure	Face Centered Cubic (FCC)
lattice constant	5,72 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Leza dengê	1.120 m/s
classification
Category	Noble gases, Noble gases
CAS Group	VIII
IUPAC Group	VIIIA
Glawe Number	4
Mendeleev Number	115
Pettifor Number	4
Geochemical Class	volatile
Goldschmidt classification	atmophile

other

Gas Basicity	402,4 kJ/mol
polarizability	16,78 ± 0,02 a₀
C6 Dispersion Coefficient	130 a₀ 136 a₀
allotrope
Neutron cross section	25
Neutron Mass Absorption	0,013
quantum number	1S0
space group	225 (Fm_3m)

Isotopes of Krypton

Stable Isotopes	4
Unstable Isotopes	31
Natural Isotopes	6

⁶⁷Kr

Hejmara baristeyî	67
neutron number	31
Giraniya Atomê	66,983305 ± 0,000455 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	7,4 ± 2,9 ms
spin	3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê	2016
parity	-

decay mode	intensity
2p (2-proton emission)	37%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

⁶⁸Kr

Hejmara baristeyî	68
neutron number	32
Giraniya Atomê	67,972489 ± 0,000537 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	21,6 ± 3,3 ms
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	2016
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)	90%
p (proton emission)

⁶⁹Kr

Hejmara baristeyî	69
neutron number	33
Giraniya Atomê	68,965496 ± 0,000322 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	27,9 ± 0,8 ms
spin	5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê	1995
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	94%

⁷⁰Kr

Hejmara baristeyî	70
neutron number	34
Giraniya Atomê	69,955877 ± 0,000215 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	45 ± 0,14 ms
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1995
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	1.3%

⁷¹Kr

Hejmara baristeyî	71
neutron number	35
Giraniya Atomê	70,950265695 ± 0,000138238 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	98,8 ± 0,3 ms
spin	5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê	1981
parity

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	2.1%

⁷²Kr

Hejmara baristeyî	72
neutron number	36
Giraniya Atomê	71,942092406 ± 0,0000086 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	17,16 ± 0,18 s
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1973
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷³Kr

Hejmara baristeyî	73
neutron number	37
Giraniya Atomê	72,939289193 ± 0,000007061 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	27,3 ± 1 s
spin	3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê	1972
parity

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	0.25%

⁷⁴Kr

Hejmara baristeyî	74
neutron number	38
Giraniya Atomê	73,933084016 ± 0,000002161 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	11,5 ± 0,11 m
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1960
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁵Kr

Hejmara baristeyî	75
neutron number	39
Giraniya Atomê	74,930945744 ± 0,0000087 Da
g-factor	-0,2124 ± 0,0016
natural abundance
radioactivity	☢️ radioactive element
half-life	4,6 ± 0,07 m
spin	5/2
nuclear quadrupole moment	1,137 ± 0,013
dema îcadkirinê yan keşfê	1960
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁶Kr

Hejmara baristeyî	76
neutron number	40
Giraniya Atomê	75,925910743 ± 0,000004308 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	14,8 ± 0,1 h
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1954
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁷Kr

Hejmara baristeyî	77
neutron number	41
Giraniya Atomê	76,924669999 ± 0,0000021 Da
g-factor	-0,2332 ± 0,0012
natural abundance
radioactivity	☢️ radioactive element
half-life	72,6 ± 0,9 m
spin	5/2
nuclear quadrupole moment	0,948 ± 0,01
dema îcadkirinê yan keşfê	1948
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁸Kr

Hejmara baristeyî	78
neutron number	42
Giraniya Atomê	77,920366341 ± 0,000000329 Da
g-factor	0
natural abundance	0,355 ± 0,003
radioactivity	☢️ radioactive element
half-life
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1920
parity	+

decay mode	intensity
2β⁺ (double β⁺ decay)

⁷⁹Kr

Hejmara baristeyî	79
neutron number	43
Giraniya Atomê	78,920082919 ± 0,000003736 Da
g-factor	1,072 ± 0,004
natural abundance
radioactivity	☢️ radioactive element
half-life	35,04 ± 0,1 h
spin	1/2
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1948
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁰Kr

Hejmara baristeyî	80
neutron number	44
Giraniya Atomê	79,91637794 ± 0,000000745 Da
g-factor	0
natural abundance	2,286 ± 0,01
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1920
parity	+

⁸¹Kr

Hejmara baristeyî	81
neutron number	45
Giraniya Atomê	80,916589703 ± 0,000001152 Da
g-factor	-0,25914285714286 ± 0,00057142857142857
natural abundance
radioactivity	☢️ radioactive element
half-life	229 ± 11 ky
spin	7/2
nuclear quadrupole moment	0,644 ± 0,004
dema îcadkirinê yan keşfê	1950
parity	+

decay mode	intensity
ϵ (electron capture)	100%

⁸²Kr

Hejmara baristeyî	82
neutron number	46
Giraniya Atomê	81,91348115368 ± 0,00000000591 Da
g-factor	0
natural abundance	11,593 ± 0,031
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1920
parity	+

⁸³Kr

Hejmara baristeyî	83
neutron number	47
Giraniya Atomê	82,914126516 ± 0,000000009 Da
g-factor	-0,21571777777778 ± 0,00000066666666666667
natural abundance	11,5 ± 0,019
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	9/2
nuclear quadrupole moment	0,259 ± 0,001
dema îcadkirinê yan keşfê	1920
parity	+

⁸⁴Kr

Hejmara baristeyî	84
neutron number	48
Giraniya Atomê	83,91149772708 ± 0,0000000041 Da
g-factor	0
natural abundance	56,987 ± 0,015
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1920
parity	+

⁸⁵Kr

Hejmara baristeyî	85
neutron number	49
Giraniya Atomê	84,91252726 ± 0,000002147 Da
g-factor	-0,22344444444444 ± 0,000088888888888889
natural abundance
radioactivity	☢️ radioactive element
half-life	10,728 ± 0,007 y
spin	9/2
nuclear quadrupole moment	0,443 ± 0,003
dema îcadkirinê yan keşfê	1940
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸⁶Kr

Hejmara baristeyî	86
neutron number	50
Giraniya Atomê	85,91061062468 ± 0,00000000399 Da
g-factor	0
natural abundance	17,279 ± 0,041
radioactivity	☢️ radioactive element
half-life
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1920
parity	+

decay mode	intensity
2β⁻ (double β⁻ decay)

⁸⁷Kr

Hejmara baristeyî	87
neutron number	51
Giraniya Atomê	86,913354759 ± 0,000000264 Da
g-factor	-0,4088 ± 0,0008
natural abundance
radioactivity	☢️ radioactive element
half-life	76,3 ± 0,5 m
spin	5/2
nuclear quadrupole moment	-0,3 ± 0,003
dema îcadkirinê yan keşfê	1940
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸⁸Kr

Hejmara baristeyî	88
neutron number	52
Giraniya Atomê	87,914447879 ± 0,0000028 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	2,825 ± 0,019 h
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1939
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸⁹Kr

Hejmara baristeyî	89
neutron number	53
Giraniya Atomê	88,917835449 ± 0,0000023 Da
g-factor	-0,22 ± 0,002
natural abundance
radioactivity	☢️ radioactive element
half-life	3,15 ± 0,04 m
spin	3/2
nuclear quadrupole moment	0,166 ± 0,002
dema îcadkirinê yan keşfê	1940
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹⁰Kr

Hejmara baristeyî	90
neutron number	54
Giraniya Atomê	89,919527929 ± 0,000002 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	32,32 ± 0,09 s
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1951
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹¹Kr

Hejmara baristeyî	91
neutron number	55
Giraniya Atomê	90,923806309 ± 0,0000024 Da
g-factor	-0,2332 ± 0,0008
natural abundance
radioactivity	☢️ radioactive element
half-life	8,57 ± 0,04 s
spin	5/2
nuclear quadrupole moment	0,303 ± 0,006
dema îcadkirinê yan keşfê	1951
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁹²Kr

Hejmara baristeyî	92
neutron number	56
Giraniya Atomê	91,926173092 ± 0,0000029 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	1,84 ± 0,008 s
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1951
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.0332%

⁹³Kr

Hejmara baristeyî	93
neutron number	57
Giraniya Atomê	92,931147172 ± 0,0000027 Da
g-factor	-0,826 ± 0,004
natural abundance
radioactivity	☢️ radioactive element
half-life	1,287 ± 0,01 s
spin	1/2
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1951
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.95%

⁹⁴Kr

Hejmara baristeyî	94
neutron number	58
Giraniya Atomê	93,934140452 ± 0,000013 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	212 ± 4 ms
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1972
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.11%

⁹⁵Kr

Hejmara baristeyî	95
neutron number	59
Giraniya Atomê	94,939710922 ± 0,00002 Da
g-factor	-0,82 ± 0,006
natural abundance
radioactivity	☢️ radioactive element
half-life	114 ± 3 ms
spin	1/2
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1994
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.87%
2n (2-neutron emission)

⁹⁶Kr

Hejmara baristeyî	96
neutron number	60
Giraniya Atomê	95,943014473 ± 0,000020695 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	80 ± 8 ms
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1994
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	3.7%

⁹⁷Kr

Hejmara baristeyî	97
neutron number	61
Giraniya Atomê	96,949088782 ± 0,00014 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	62,2 ± 3,2 ms
spin	3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	6.7%
2n (2-neutron emission)

⁹⁸Kr

Hejmara baristeyî	98
neutron number	62
Giraniya Atomê	97,952635 ± 0,000322 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	42,8 ± 3,6 ms
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	7%
2n (2-neutron emission)

⁹⁹Kr

Hejmara baristeyî	99
neutron number	63
Giraniya Atomê	98,958776 ± 0,000429 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	40 ± 11 ms
spin	5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê	1997
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	11%
2n (2-neutron emission)

¹⁰⁰Kr

Hejmara baristeyî	100
neutron number	64
Giraniya Atomê	99,962995 ± 0,000429 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	12 ± 8 ms
spin	0
nuclear quadrupole moment	0
dema îcadkirinê yan keşfê	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁰¹Kr

Hejmara baristeyî	101
neutron number	65
Giraniya Atomê	100,969318 ± 0,000537 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin	5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê	2010
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

dîrok

kaşîf an îcadker	Sir William Ramsey, M.W. Travers
location of discovery	Great Britain
dema îcadkirinê yan keşfê	1898
Bêjenasî	Greek: kryptos (hidden).
pronunciation	KRIP-ton (îngilîzî)

source

Abundance
Abundance in Earth's crust	0,0001 mg/kg
natural abundance (Okyanûs)	0,00021 mg/L
natural abundance (human body)
natural abundance (meteoroid)
natural abundance (Roj)
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

Kripton on ChemicalAid

krypton

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

Kripton (Kr)

Physical Property

Chemical Property

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

dîrok

source

Nuclear Screening Constants

⁶⁷Kr

⁶⁸Kr

⁶⁹Kr

⁷⁰Kr

⁷¹Kr

⁷²Kr

⁷³Kr

⁷⁴Kr

⁷⁵Kr

⁷⁶Kr

⁷⁷Kr

⁷⁸Kr

⁷⁹Kr

⁸⁰Kr

⁸¹Kr

⁸²Kr

⁸³Kr

⁸⁴Kr

⁸⁵Kr

⁸⁶Kr

⁸⁷Kr

⁸⁸Kr

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