Kliptoni

Kliptoni (Kr)

chemical element with symbol Kr and atomic number 36; rare gas
Atomic Number36
Atomic Weight83.798
mass number84
Group18
Period4
Blockp
Proton36 p+
Netron48 n0
Eléktron36 e-
Animated Bohr model of Kr (Kliptoni)

Physical Property

Atomic Radius
molar volume
covalent radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density

Chemical Property

molungé
proton affinity
electron affinity
ionization energy
ionization energy of Kr (Kliptoni)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
Eléktron
electron shell2, 8, 18, 8
Bohr model: Kr (Kliptoni)
valence electron8
Lewis structure: Kr (Kliptoni)
electron configuration[Ar] 3d10 4s2 4p6
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6
Enhanced Bohr model of Kr (Kliptoni)
Orbital Diagram of Kr (Kliptoni)
oxidation number0, 1, 2
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterGas
gaseous state of matterMonoatomic
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
Lángi
Colorless
appearancecolorless gas, exhibiting a whitish glow in a high electric field
refractive index
1,000427
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio5/3
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
typediamagnetic
magnetic susceptibility (Mass)
-0,0000000044 m³/Kg
magnetic susceptibility (Molar)
-0,000000000369 m³/mol
magnetic susceptibility (Volume)
-0,0000000165
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal StructureFace Centered Cubic (FCC)
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryNoble gases, Noble gases
CAS GroupVIII
IUPAC GroupVIIIA
Glawe Number4
Mendeleev Number115
Pettifor Number4
Geochemical Classvolatile
Goldschmidt classificationatmophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
25
Neutron Mass Absorption
0,013
quantum number1S0
space group225 (Fm_3m)

Isotopes of Krypton

Stable Isotopes4
Unstable Isotopes31
Natural Isotopes6
Isotopic Composition8456.99%8456.99%8617.28%8617.28%8211.59%8211.59%8311.50%8311.50%802.29%802.29%780.36%780.36%

67Kr

mass number67
neutron number31
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
7,4 ± 2,9 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention2016
parity-

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

68Kr

mass number68
neutron number32
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
21,6 ± 3,3 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention2016
parity+

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

69Kr

mass number69
neutron number33
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
27,9 ± 0,8 ms
spin5/2
nuclear quadrupole moment
time of discovery or invention1995
parity-

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

70Kr

mass number70
neutron number34
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
45 ± 0,14 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1995
parity+

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

71Kr

mass number71
neutron number35
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
98,8 ± 0,3 ms
spin5/2
nuclear quadrupole moment
time of discovery or invention1981
parity

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

72Kr

mass number72
neutron number36
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
17,16 ± 0,18 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1973
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

73Kr

mass number73
neutron number37
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
27,3 ± 1 s
spin3/2
nuclear quadrupole moment
time of discovery or invention1972
parity

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

74Kr

mass number74
neutron number38
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
11,5 ± 0,11 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1960
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

75Kr

mass number75
neutron number39
Relative Atomic Mass
g-factor
-0,2124 ± 0,0016
natural abundance
radioactivity☢️ radioactive element
half-life
4,6 ± 0,07 m
spin5/2
nuclear quadrupole moment
1,137 ± 0,013
time of discovery or invention1960
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

76Kr

mass number76
neutron number40
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
14,8 ± 0,1 h
spin0
nuclear quadrupole moment
0
time of discovery or invention1954
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

77Kr

mass number77
neutron number41
Relative Atomic Mass
g-factor
-0,2332 ± 0,0012
natural abundance
radioactivity☢️ radioactive element
half-life
72,6 ± 0,9 m
spin5/2
nuclear quadrupole moment
0,948 ± 0,01
time of discovery or invention1948
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

78Kr

mass number78
neutron number42
Relative Atomic Mass
g-factor
0
natural abundance
0,355 ± 0,003
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

decay modeintensity
+ (double β+ decay)

79Kr

mass number79
neutron number43
Relative Atomic Mass
g-factor
1,072 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
35,04 ± 0,1 h
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1948
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

80Kr

mass number80
neutron number44
Relative Atomic Mass
g-factor
0
natural abundance
2,286 ± 0,01
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

81Kr

mass number81
neutron number45
Relative Atomic Mass
g-factor
-0,25914285714286 ± 0,00057142857142857
natural abundance
radioactivity☢️ radioactive element
half-life
229 ± 11 ky
spin7/2
nuclear quadrupole moment
0,644 ± 0,004
time of discovery or invention1950
parity+

decay modeintensity
ϵ (electron capture)100%

82Kr

mass number82
neutron number46
Relative Atomic Mass
g-factor
0
natural abundance
11,593 ± 0,031
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

83Kr

mass number83
neutron number47
Relative Atomic Mass
g-factor
-0,21571777777778 ± 0,00000066666666666667
natural abundance
11,5 ± 0,019
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin9/2
nuclear quadrupole moment
0,259 ± 0,001
time of discovery or invention1920
parity+

84Kr

mass number84
neutron number48
Relative Atomic Mass
g-factor
0
natural abundance
56,987 ± 0,015
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

85Kr

mass number85
neutron number49
Relative Atomic Mass
g-factor
-0,22344444444444 ± 0,000088888888888889
natural abundance
radioactivity☢️ radioactive element
half-life
10,728 ± 0,007 y
spin9/2
nuclear quadrupole moment
0,443 ± 0,003
time of discovery or invention1940
parity+

decay modeintensity
β (β decay)100%

86Kr

mass number86
neutron number50
Relative Atomic Mass
g-factor
0
natural abundance
17,279 ± 0,041
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

decay modeintensity
(double β decay)

87Kr

mass number87
neutron number51
Relative Atomic Mass
g-factor
-0,4088 ± 0,0008
natural abundance
radioactivity☢️ radioactive element
half-life
76,3 ± 0,5 m
spin5/2
nuclear quadrupole moment
-0,3 ± 0,003
time of discovery or invention1940
parity+

decay modeintensity
β (β decay)100%

88Kr

mass number88
neutron number52
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,825 ± 0,019 h
spin0
nuclear quadrupole moment
0
time of discovery or invention1939
parity+

decay modeintensity
β (β decay)100%

89Kr

mass number89
neutron number53
Relative Atomic Mass
g-factor
-0,22 ± 0,002
natural abundance
radioactivity☢️ radioactive element
half-life
3,15 ± 0,04 m
spin3/2
nuclear quadrupole moment
0,166 ± 0,002
time of discovery or invention1940
parity+

decay modeintensity
β (β decay)100%

90Kr

mass number90
neutron number54
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
32,32 ± 0,09 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1951
parity+

decay modeintensity
β (β decay)100%

91Kr

mass number91
neutron number55
Relative Atomic Mass
g-factor
-0,2332 ± 0,0008
natural abundance
radioactivity☢️ radioactive element
half-life
8,57 ± 0,04 s
spin5/2
nuclear quadrupole moment
0,303 ± 0,006
time of discovery or invention1951
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

92Kr

mass number92
neutron number56
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,84 ± 0,008 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1951
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.0332%

93Kr

mass number93
neutron number57
Relative Atomic Mass
g-factor
-0,826 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
1,287 ± 0,01 s
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1951
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.95%

94Kr

mass number94
neutron number58
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
212 ± 4 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1972
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.11%

95Kr

mass number95
neutron number59
Relative Atomic Mass
g-factor
-0,82 ± 0,006
natural abundance
radioactivity☢️ radioactive element
half-life
114 ± 3 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2.87%
2n (2-neutron emission)

96Kr

mass number96
neutron number60
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
80 ± 8 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)3.7%

97Kr

mass number97
neutron number61
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
62,2 ± 3,2 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention1997
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)6.7%
2n (2-neutron emission)

98Kr

mass number98
neutron number62
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
42,8 ± 3,6 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1997
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)7%
2n (2-neutron emission)

99Kr

mass number99
neutron number63
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
40 ± 11 ms
spin5/2
nuclear quadrupole moment
time of discovery or invention1997
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)11%
2n (2-neutron emission)

100Kr

mass number100
neutron number64
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
12 ± 8 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1997
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

101Kr

mass number101
neutron number65
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
time of discovery or invention2010
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Krypton discharge tube

lisoló

discoverer or inventorSir William Ramsey, M.W. Travers
location of discoveryGreat Britain
time of discovery or invention1898
etymologyGreek: kryptos (hidden).
pronunciationKRIP-ton (lingɛlɛ́sa)

source

Abundance
Abundance in Earth's crust
natural abundance (ocean)
natural abundance (human body)
natural abundance (meteoroid)
natural abundance (Mói)
Abundance in Universe
0,000004 %

Nuclear Screening Constants

1s0.7684
2p3.953
2s9.602
3d15.3741
3p15.5658
3s14.9673
4p26.2308
4s24.6844