Xenó

Xenó (Xe)

chemical element with atomic number of 54 and heaviest stable noble gas
Atomic Number54
Atomic Weight131.293
Rhif màs132
Group18
Period5
Blockp
Proton54 p+
Niwtron78 n0
Electron54 e-
Animated Bohr model of Xe (Xenó)

Nodwedd Ffisegol

Atomic Radius
molar volume
covalent radius
131 pm
Metallic Radius
ionic radius
40 pm
Crystal Radius
54 pm
Van der Waals radius
216 pm
density
0.005366 g/cm³

Nodwedd Gemegol

egni
proton affinity
499.6 kJ/mol
electron affinity
ionization energy
12.1298431 eV/particle
ionization energy of Xe (Xenó)
enthalpy of vaporization
12.65 kJ/mol
enthalpy of fusion
standard enthalpy of formation
Electron
plisgyn yr electron2, 8, 18, 18, 8
Bohr model: Xe (Xenó)
valence electron8
Lewis structure: Xe (Xenó)
trefn yr electronnau[Kr] 4d10 5s2 5p6
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10 5s2 5p6
Enhanced Bohr model of Xe (Xenó)
Orbital Diagram of Xe (Xenó)
Cyflwr ocsidiad0, 2, 4, 6, 8
Electronegatifedd
2.6
Electrophilicity Index
1.4953590614035728 eV/particle
cyflwr sylfaenol mater
cyflwr materGas
gaseous state of matterMonoatomic
Boiling Point
165.051 K
Melting Point
161.4 K
critical pressure
5.842 MPa
critical temperature
289.733 K
triple point
161.405 K
81.77 kPa
appearance
lliw
Colorless
appearancecolorless gas, exhibiting a blue glow when placed in a high voltage electric field
Mynegrif plygiant
1.000702
nodwedd ffisegol gwrthrych
Thermal Conductivity
0.0057 W/(m K)
thermal expansion
molar heat capacity
20.786 J/(mol K)
Specific Heat Capacity
0.158 J/(g⋅K)
heat capacity ratio5/3
electrical properties
type
dargludedd trydanol
Gwrthedd
superconductivity
magnetism
typediamagnetic
magnetic susceptibility (Mass)
-0.0000000043 m³/Kg
magnetic susceptibility (Molar)
-0.000000000565 m³/mol
magnetic susceptibility (Volume)
-0.0000000254
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal StructureFace Centered Cubic (FCC)
lattice constant
6.2 Å
Lattice Anglesπ/2, π/2, π/2
nodwedd mecanyddol deunyddiau
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
1,090 m/s
classification
CategoryNoble gases, Noble gases
CAS GroupVIII
IUPAC GroupVIIIA
Glawe Number5
Mendeleev Number116
Pettifor Number5
Geochemical Classvolatile
Goldschmidt classificationatmophile

other

Gas Basicity
478.1 kJ/mol
polarizability
27.32 ± 0.2 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
25
Neutron Mass Absorption
0.0083
quantum number1S0
space group225 (Fm_3m)

Isotopes of Xenon

Stable Isotopes5
Unstable Isotopes38
Natural Isotopes9
Isotopic Composition12926.40%12926.40%13226.91%13226.91%13121.23%13121.23%13410.44%13410.44%1368.86%1368.86%1304.07%1304.07%1281.91%1281.91%1240.10%1240.10%1260.09%1260.09%

108Xe

Rhif màs108
neutron number54
relative atomic mass
107.954232285 ± 0.000407406 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
72 ± 35 us
spin0
nuclear quadrupole moment
0
dyddiad darganfod2018
parity+

decay modeintensity
α (α emission)100%

109Xe

Rhif màs109
neutron number55
relative atomic mass
108.950434955 ± 0.000322178 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
13 ± 2 ms
spin7/2
nuclear quadrupole moment
dyddiad darganfod2006
parity+

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

110Xe

Rhif màs110
neutron number56
relative atomic mass
109.944258759 ± 0.000108415 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
93 ± 3 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1981
parity+

decay modeintensity
α (α emission)64%
β+ (β+ decay; β+ = ϵ + e+)36%
β+ p (β+-delayed proton emission)

111Xe

Rhif màs111
neutron number57
relative atomic mass
110.94147 ± 0.000124 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
740 ± 200 ms
spin5/2
nuclear quadrupole moment
dyddiad darganfod1979
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)89.6%
α (α emission)10.4%
β+ p (β+-delayed proton emission)

112Xe

Rhif màs112
neutron number58
relative atomic mass
111.935559068 ± 0.000008891 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.7 ± 0.8 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1978
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)98.8%
α (α emission)1.2%
β+ p (β+-delayed proton emission)

113Xe

Rhif màs113
neutron number59
relative atomic mass
112.933221663 ± 0.000007342 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.74 ± 0.08 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod1973
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)
β+ p (β+-delayed proton emission)7%
β+α (β+-delayed α emission)0.007%

114Xe

Rhif màs114
neutron number60
relative atomic mass
113.927980329 ± 0.000012 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
10 ± 0.4 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1977
parity+

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

115Xe

Rhif màs115
neutron number61
relative atomic mass
114.926293943 ± 0.000013 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
18 ± 3 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod1969
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.34%

116Xe

Rhif màs116
neutron number62
relative atomic mass
115.921580955 ± 0.000013974 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
59 ± 2 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1969
parity+

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

117Xe

Rhif màs117
neutron number63
relative atomic mass
116.920358758 ± 0.000011141 Da
g-factor
-0.23752 ± 0.0006
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
61 ± 2 s
spin5/2
nuclear quadrupole moment
1.1 ± 0.4
dyddiad darganfod1969
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.0029%

118Xe

Rhif màs118
neutron number64
relative atomic mass
117.916178678 ± 0.000011141 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.8 ± 0.9 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1965
parity+

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

119Xe

Rhif màs119
neutron number65
relative atomic mass
118.915410641 ± 0.000011141 Da
g-factor
-0.26168 ± 0.0006
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
5.8 ± 0.3 m
spin5/2
nuclear quadrupole moment
1.29 ± 0.05
dyddiad darganfod1965
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)79%
ϵ (electron capture)21%

120Xe

Rhif màs120
neutron number66
relative atomic mass
119.911784267 ± 0.000012686 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
46 ± 0.6 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1965
parity+

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

121Xe

Rhif màs121
neutron number67
relative atomic mass
120.911453012 ± 0.000010995 Da
g-factor
-0.2804 ± 0.0012
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
40.1 ± 2 m
spin5/2
nuclear quadrupole moment
1.31 ± 0.05
dyddiad darganfod1952
parity+

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

122Xe

Rhif màs122
neutron number68
relative atomic mass
121.908367655 ± 0.000011928 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
20.1 ± 0.1 h
spin0
nuclear quadrupole moment
0
dyddiad darganfod1952
parity+

decay modeintensity
ϵ (electron capture)100%

123Xe

Rhif màs123
neutron number69
relative atomic mass
122.908482235 ± 0.000010234 Da
g-factor
-0.3 ± 0.006
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.08 ± 0.02 h
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1952
parity+

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

124Xe

Rhif màs124
neutron number70
relative atomic mass
123.905885174 ± 0.000001457 Da
g-factor
0
natural abundance
0.095 ± 0.005
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod1922
parity+

decay modeintensity
+ (double β+ decay)

125Xe

Rhif màs125
neutron number71
relative atomic mass
124.90638764 ± 0.000001518 Da
g-factor
-0.538 ± 0.006
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
16.87 ± 0.08 h
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1950
parity+

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

126Xe

Rhif màs126
neutron number72
relative atomic mass
125.904297422 ± 0.000000006 Da
g-factor
0
natural abundance
0.089 ± 0.003
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod1922
parity+

decay modeintensity
+ (double β+ decay)

127Xe

Rhif màs127
neutron number73
relative atomic mass
126.905183636 ± 0.000004388 Da
g-factor
-1.0066 ± 0.0022
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
36.342 ± 0.003 d
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1950
parity+

decay modeintensity
ϵ (electron capture)100%

128Xe

Rhif màs128
neutron number74
relative atomic mass
127.90353075341 ± 0.00000000558 Da
g-factor
0
natural abundance
1.91 ± 0.013
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1922
parity+

129Xe

Rhif màs129
neutron number75
relative atomic mass
128.90478085742 ± 0.00000000542 Da
g-factor
-1.555922 ± 0.000032
natural abundance
26.401 ± 0.138
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1920
parity+

130Xe

Rhif màs130
neutron number76
relative atomic mass
129.903509346 ± 0.00000001 Da
g-factor
0
natural abundance
4.071 ± 0.022
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1922
parity+

131Xe

Rhif màs131
neutron number77
relative atomic mass
130.90508412808 ± 0.00000000549 Da
g-factor
0.46123 ± 0.0000046666666666667
natural abundance
21.232 ± 0.051
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
-0.114 ± 0.001
dyddiad darganfod1920
parity+

132Xe

Rhif màs132
neutron number78
relative atomic mass
131.90415508346 ± 0.00000000544 Da
g-factor
0
natural abundance
26.909 ± 0.055
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1920
parity+

133Xe

Rhif màs133
neutron number79
relative atomic mass
132.905910748 ± 0.000002576 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
5.2474 ± 0.0005 d
spin3/2
nuclear quadrupole moment
0.14 ± 0.005
dyddiad darganfod1940
parity+

decay modeintensity
β (β decay)100%

134Xe

Rhif màs134
neutron number80
relative atomic mass
133.90539303 ± 0.000000006 Da
g-factor
0
natural abundance
10.436 ± 0.035
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod1920
parity+

decay modeintensity
(double β decay)

135Xe

Rhif màs135
neutron number81
relative atomic mass
134.907231441 ± 0.000003938 Da
g-factor
0.60213333333333 ± 0.00046666666666667
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
9.14 ± 0.02 h
spin3/2
nuclear quadrupole moment
0.21 ± 0.007
dyddiad darganfod1940
parity+

decay modeintensity
β (β decay)100%

136Xe

Rhif màs136
neutron number82
relative atomic mass
135.907214474 ± 0.000000007 Da
g-factor
0
natural abundance
8.857 ± 0.072
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.18 ± 0.05 Zy
spin0
nuclear quadrupole moment
0
dyddiad darganfod1920
parity+

decay modeintensity
(double β decay)100%

137Xe

Rhif màs137
neutron number83
relative atomic mass
136.911557771 ± 0.000000111 Da
g-factor
-0.27725714285714 ± 0.00028571428571429
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.818 ± 0.013 m
spin7/2
nuclear quadrupole moment
-0.47 ± 0.02
dyddiad darganfod1943
parity-

decay modeintensity
β (β decay)100%

138Xe

Rhif màs138
neutron number84
relative atomic mass
137.914146268 ± 0.00000301 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
14.14 ± 0.07 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1943
parity+

decay modeintensity
β (β decay)100%

139Xe

Rhif màs139
neutron number85
relative atomic mass
138.9187922 ± 0.0000023 Da
g-factor
-0.20266666666667 ± 0.0010666666666667
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
39.68 ± 0.14 s
spin3/2
nuclear quadrupole moment
0.39 ± 0.02
dyddiad darganfod1951
parity-

decay modeintensity
β (β decay)100%

140Xe

Rhif màs140
neutron number86
relative atomic mass
139.921645814 ± 0.0000025 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
13.6 ± 0.1 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1951
parity+

decay modeintensity
β (β decay)100%

141Xe

Rhif màs141
neutron number87
relative atomic mass
140.926787181 ± 0.0000031 Da
g-factor
0.004 ± 0.0012
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.73 ± 0.01 s
spin5/2
nuclear quadrupole moment
-0.57 ± 0.02
dyddiad darganfod1951
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.044%

142Xe

Rhif màs142
neutron number88
relative atomic mass
141.929973095 ± 0.0000029 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.23 ± 0.02 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1960
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.37%

143Xe

Rhif màs143
neutron number89
relative atomic mass
142.93536955 ± 0.000005 Da
g-factor
-0.184 ± 0.0008
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
511 ± 6 ms
spin5/2
nuclear quadrupole moment
0.91 ± 0.03
dyddiad darganfod1951
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1%

144Xe

Rhif màs144
neutron number90
relative atomic mass
143.938945076 ± 0.0000057 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
388 ± 7 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod2003
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)3%

145Xe

Rhif màs145
neutron number91
relative atomic mass
144.944719631 ± 0.000012 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
188 ± 4 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod2003
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)5%
2n (2-neutron emission)

146Xe

Rhif màs146
neutron number92
relative atomic mass
145.948518245 ± 0.000026 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
146 ± 6 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1989
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)6.9%

147Xe

Rhif màs147
neutron number93
relative atomic mass
146.954482 ± 0.000215 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
88 ± 14 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod1994
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)8%
2n (2-neutron emission)

148Xe

Rhif màs148
neutron number94
relative atomic mass
147.958508 ± 0.000322 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
85 ± 15 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod2010
parity+

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

149Xe

Rhif màs149
neutron number95
relative atomic mass
148.964573 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin3/2
nuclear quadrupole moment
dyddiad darganfod2018
parity-

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

150Xe

Rhif màs150
neutron number96
relative atomic mass
149.968878 ± 0.000322 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod2018
parity+

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

hanes

darganfyddwr neu ddyfeisiwrSir William Ramsay; M. W. Travers
man darganfodEngland
dyddiad darganfod1898
geirdarddiadGreek: xenos (strange).
ynganiadZEE-non (Saesneg)

source

Abundance
Abundance in Earth's crust
0.00003 mg/kg
natural abundance (cefnfor)
0.00005 mg/L
natural abundance (corff dynol)
natural abundance (Awyrfaen)
natural abundance (Haul)
Abundance in Universe
0.000001 %

Nuclear Screening Constants

1s1.0785
2p4.1654
2s14.197
3d14.0532
3p18.3324
3s18.4236
4d32.1068
4p29.0428
4s27.8272
5p41.5755
5s39.782