Krüptoon (Kr)

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

Atomic Number	36
Atomic Weight	83.798
massiarv	84

Group	18
Period	4
Block	p

prooton	36 p⁺
neutron	48 n⁰
elektron	36 e^-

Animated Bohri aatomiteooria of Kr (Krüptoon)

Füüsikalised Omadused

Aatomiraadius	212 pm
molaarruumala	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

Keemilised Omadused

energia

proton affinity	424,6 kJ/mol
Elektronafiinsus
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

aurustumissoojus	9,05 kJ/mol
sulamissoojus
standard enthalpy of formation
elektron

elektronkiht	2, 8, 18, 8

valentselektron	8 ⓘ

elektronkonfiguratsioon	[Ar] 3d¹⁰ 4s² 4p⁶ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶

oksüdatsiooniaste	0, 1, 2
elektronegatiivsus	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
kolmikpunkt	115,775 K 73,53 kPa
Välimus
värvus	Colorless #ff1493 #5cb8d1 #5cb8d1
Välimus	colorless gas, exhibiting a whitish glow in a high electric field
Murdumisnäitaja	1,000427
thermodynamic material property
Thermal Conductivity	0,0095 W/(m K)
soojuspaisumine
molar heat capacity	20,786 J/(mol K)
Specific Heat Capacity	0,248 J/(g⋅K)
heat capacity ratio	5/3
electrical properties
type
Elektrijuhtivus
Eritakistus
Ülijuhtivus
Magnetism
type	diamagnetic
Magnetiline vastuvõtlikkus (Mass)	−0,0000000044 m³/Kg
Magnetiline vastuvõtlikkus (Molar)	−0,000000000369 m³/mol
Magnetiline vastuvõtlikkus (Volume)	−0,0000000165
magnetic ordering
Curie punkt
Néel temperature
struktuur
Crystal Structure	Face Centered Cubic (FCC)
lattice constant	5,72 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
kõvadus
Ruumpaisumismoodul
Nihkeelastsusmoodul
Normaalelastsusmoodul
Poissoni tegur
heli kiirus	1 120 m/s
Klassifitseerimine
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

teine

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
Kvantarv	1S0
space group	225 (Fm_3m)

Isotopes of Krypton

Stable Isotopes	4
Unstable Isotopes	31
Natural Isotopes	6

⁶⁷Kr

massiarv	67
neutron number	31
Relative Atomic Mass	66,983305 ± 0,000455 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	7,4 ± 2,9 ms
spinn	3/2
nuclear quadrupole moment
avastamise aeg	2016
parity	-

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

⁶⁸Kr

massiarv	68
neutron number	32
Relative Atomic Mass	67,972489 ± 0,000537 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	21,6 ± 3,3 ms
spinn	0
nuclear quadrupole moment	0
avastamise aeg	2016
parity	+

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

⁶⁹Kr

massiarv	69
neutron number	33
Relative Atomic Mass	68,965496 ± 0,000322 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	27,9 ± 0,8 ms
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1995
parity	-

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

⁷⁰Kr

massiarv	70
neutron number	34
Relative Atomic Mass	69,955877 ± 0,000215 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	45 ± 0,14 ms
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1995
parity	+

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

⁷¹Kr

massiarv	71
neutron number	35
Relative Atomic Mass	70,950265695 ± 0,000138238 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	98,8 ± 0,3 ms
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1981
parity

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

⁷²Kr

massiarv	72
neutron number	36
Relative Atomic Mass	71,942092406 ± 0,0000086 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	17,16 ± 0,18 s
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1973
parity	+

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

⁷³Kr

massiarv	73
neutron number	37
Relative Atomic Mass	72,939289193 ± 0,000007061 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	27,3 ± 1 s
spinn	3/2
nuclear quadrupole moment
avastamise aeg	1972
parity

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

⁷⁴Kr

massiarv	74
neutron number	38
Relative Atomic Mass	73,933084016 ± 0,000002161 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	11,5 ± 0,11 m
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1960
parity	+

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

⁷⁵Kr

massiarv	75
neutron number	39
Relative Atomic Mass	74,930945744 ± 0,0000087 Da
g-factor	−0,2124 ± 0,0016
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	4,6 ± 0,07 m
spinn	5/2
nuclear quadrupole moment	1,137 ± 0,013
avastamise aeg	1960
parity	+

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

⁷⁶Kr

massiarv	76
neutron number	40
Relative Atomic Mass	75,925910743 ± 0,000004308 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	14,8 ± 0,1 h
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1954
parity	+

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

⁷⁷Kr

massiarv	77
neutron number	41
Relative Atomic Mass	76,924669999 ± 0,0000021 Da
g-factor	−0,2332 ± 0,0012
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	72,6 ± 0,9 m
spinn	5/2
nuclear quadrupole moment	0,948 ± 0,01
avastamise aeg	1948
parity	+

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

⁷⁸Kr

massiarv	78
neutron number	42
Relative Atomic Mass	77,920366341 ± 0,000000329 Da
g-factor	0
natural abundance	0,355 ± 0,003
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1920
parity	+

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

⁷⁹Kr

massiarv	79
neutron number	43
Relative Atomic Mass	78,920082919 ± 0,000003736 Da
g-factor	1,072 ± 0,004
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	35,04 ± 0,1 h
spinn	1/2
nuclear quadrupole moment	0
avastamise aeg	1948
parity	-

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

⁸⁰Kr

massiarv	80
neutron number	44
Relative Atomic Mass	79,91637794 ± 0,000000745 Da
g-factor	0
natural abundance	2,286 ± 0,01
radioaktiivsus	Stabiilne isotoop
Poolestusaeg	Not Radioactive ☢️
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1920
parity	+

⁸¹Kr

massiarv	81
neutron number	45
Relative Atomic Mass	80,916589703 ± 0,000001152 Da
g-factor	−0,25914285714286 ± 0,00057142857142857
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	229 ± 11 ky
spinn	7/2
nuclear quadrupole moment	0,644 ± 0,004
avastamise aeg	1950
parity	+

decay mode	Intensiivsus
ϵ (electron capture)	100%

⁸²Kr

massiarv	82
neutron number	46
Relative Atomic Mass	81,91348115368 ± 0,00000000591 Da
g-factor	0
natural abundance	11,593 ± 0,031
radioaktiivsus	Stabiilne isotoop
Poolestusaeg	Not Radioactive ☢️
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1920
parity	+

⁸³Kr

massiarv	83
neutron number	47
Relative Atomic Mass	82,914126516 ± 0,000000009 Da
g-factor	−0,21571777777778 ± 0,00000066666666666667
natural abundance	11,5 ± 0,019
radioaktiivsus	Stabiilne isotoop
Poolestusaeg	Not Radioactive ☢️
spinn	9/2
nuclear quadrupole moment	0,259 ± 0,001
avastamise aeg	1920
parity	+

⁸⁴Kr

massiarv	84
neutron number	48
Relative Atomic Mass	83,91149772708 ± 0,0000000041 Da
g-factor	0
natural abundance	56,987 ± 0,015
radioaktiivsus	Stabiilne isotoop
Poolestusaeg	Not Radioactive ☢️
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1920
parity	+

⁸⁵Kr

massiarv	85
neutron number	49
Relative Atomic Mass	84,91252726 ± 0,000002147 Da
g-factor	−0,22344444444444 ± 0,000088888888888889
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	10,728 ± 0,007 y
spinn	9/2
nuclear quadrupole moment	0,443 ± 0,003
avastamise aeg	1940
parity	+

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

⁸⁶Kr

massiarv	86
neutron number	50
Relative Atomic Mass	85,91061062468 ± 0,00000000399 Da
g-factor	0
natural abundance	17,279 ± 0,041
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1920
parity	+

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

⁸⁷Kr

massiarv	87
neutron number	51
Relative Atomic Mass	86,913354759 ± 0,000000264 Da
g-factor	−0,4088 ± 0,0008
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	76,3 ± 0,5 m
spinn	5/2
nuclear quadrupole moment	−0,3 ± 0,003
avastamise aeg	1940
parity	+

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

⁸⁸Kr

massiarv	88
neutron number	52
Relative Atomic Mass	87,914447879 ± 0,0000028 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	2,825 ± 0,019 h
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1939
parity	+

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

⁸⁹Kr

massiarv	89
neutron number	53
Relative Atomic Mass	88,917835449 ± 0,0000023 Da
g-factor	−0,22 ± 0,002
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	3,15 ± 0,04 m
spinn	3/2
nuclear quadrupole moment	0,166 ± 0,002
avastamise aeg	1940
parity	+

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

⁹⁰Kr

massiarv	90
neutron number	54
Relative Atomic Mass	89,919527929 ± 0,000002 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	32,32 ± 0,09 s
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1951
parity	+

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

⁹¹Kr

massiarv	91
neutron number	55
Relative Atomic Mass	90,923806309 ± 0,0000024 Da
g-factor	−0,2332 ± 0,0008
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	8,57 ± 0,04 s
spinn	5/2
nuclear quadrupole moment	0,303 ± 0,006
avastamise aeg	1951
parity	+

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

⁹²Kr

massiarv	92
neutron number	56
Relative Atomic Mass	91,926173092 ± 0,0000029 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	1,84 ± 0,008 s
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1951
parity	+

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

⁹³Kr

massiarv	93
neutron number	57
Relative Atomic Mass	92,931147172 ± 0,0000027 Da
g-factor	−0,826 ± 0,004
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	1,287 ± 0,01 s
spinn	1/2
nuclear quadrupole moment	0
avastamise aeg	1951
parity	+

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

⁹⁴Kr

massiarv	94
neutron number	58
Relative Atomic Mass	93,934140452 ± 0,000013 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	212 ± 4 ms
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1972
parity	+

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

⁹⁵Kr

massiarv	95
neutron number	59
Relative Atomic Mass	94,939710922 ± 0,00002 Da
g-factor	−0,82 ± 0,006
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	114 ± 3 ms
spinn	1/2
nuclear quadrupole moment	0
avastamise aeg	1994
parity	+

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

⁹⁶Kr

massiarv	96
neutron number	60
Relative Atomic Mass	95,943014473 ± 0,000020695 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	80 ± 8 ms
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1994
parity	+

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

⁹⁷Kr

massiarv	97
neutron number	61
Relative Atomic Mass	96,949088782 ± 0,00014 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	62,2 ± 3,2 ms
spinn	3/2
nuclear quadrupole moment
avastamise aeg	1997
parity	+

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

⁹⁸Kr

massiarv	98
neutron number	62
Relative Atomic Mass	97,952635 ± 0,000322 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	42,8 ± 3,6 ms
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1997
parity	+

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

⁹⁹Kr

massiarv	99
neutron number	63
Relative Atomic Mass	98,958776 ± 0,000429 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	40 ± 11 ms
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1997
parity	-

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

¹⁰⁰Kr

massiarv	100
neutron number	64
Relative Atomic Mass	99,962995 ± 0,000429 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	12 ± 8 ms
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1997
parity	+

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

¹⁰¹Kr

massiarv	101
neutron number	65
Relative Atomic Mass	100,969318 ± 0,000537 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn	5/2
nuclear quadrupole moment
avastamise aeg	2010
parity	+

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

ajalugu

leiutaja või avastaja	Sir William Ramsey, M.W. Travers
location of discovery	Great Britain
avastamise aeg	1898
etümoloogia	Greek: kryptos (hidden).
pronunciation	KRIP-ton (inglise)

allikas

Abundance
Abundance in Earth's crust	0,0001 mg/kg
natural abundance (ookean)	0,00021 mg/L
natural abundance (Inimkeha)
natural abundance (meteoorkeha)
natural abundance (Päike)
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

Krüptoon on ChemicalAid

Australian Educational Vocabulary ID	scot/3534
BNCF Thesaurus ID	31853
BNF	119666366
Biblioteca Nacional de España ID	XX534609
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	/m/0286yf3
French Vikidia ID	Krypton
GND	4165832-2
Great Russian Encyclopedia Online ID	2112653
ICSC ID	0604
InChI	InChI=1S/Kr
InChIKey	DNNSSWSSYDEUBZ-UHFFFAOYSA-N
KBpedia ID	Krypton
LCCN	sh85073327
MeSH descriptor ID	D007726
NALT ID	48590
NDL-tunnus	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

Krüptoon (Kr)

Füüsikalised Omadused

Keemilised Omadused

teine

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

ajalugu

allikas

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

⁸⁹Kr

⁹⁰Kr

⁹¹Kr

⁹²Kr

⁹³Kr

⁹⁴Kr

⁹⁵Kr

⁹⁶Kr

⁹⁷Kr

⁹⁸Kr

⁹⁹Kr

¹⁰⁰Kr

¹⁰¹Kr