Żenon, ²Xenu

Żenon, ²Xenu (Xe)

chemical element with atomic number of 54 and heaviest stable noble gas
Atomic Number54
Atomic Weight131.293
mass number132
Group18
Period5
Blockp
proton54 p+
neutron78 n0
elettron54 e-
Animated Bohr model of Xe (Żenon, ²Xenu)

Physical Property

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

Chemical Property

enerġija
proton affinity
499.6 kJ/mol
electron affinity
ionization energy
12.1298431 eV/particle
ionization energy of Xe (Żenon, ²Xenu)
enthalpy of vaporization
12.65 kJ/mol
enthalpy of fusion
standard enthalpy of formation
elettron
electron shell2, 8, 18, 18, 8
Bohr model: Xe (Żenon, ²Xenu)
valence electron8
Lewis structure: Xe (Żenon, ²Xenu)
electron configuration[Kr] 4d10 5s2 5p6
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10 5s2 5p6
Enhanced Bohr model of Xe (Żenon, ²Xenu)
Orbital Diagram of Xe (Żenon, ²Xenu)
oxidation number0, 2, 4, 6, 8
electronegativity
2.6
Electrophilicity Index
1.4953590614035728 eV/particle
fundamental state of matter
phase of matterGas
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
kulur
Colorless
appearancecolorless gas, exhibiting a blue glow when placed in a high voltage electric field
refractive index
1.000702
thermodynamic material property
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
electrical conductivity
electrical resistivity
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
structure
Crystal StructureFace Centered Cubic (FCC)
lattice constant
6.2 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
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

mass number108
neutron number54
relative atomic mass
107.954232285 ± 0.000407406 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
72 ± 35 us
spin0
nuclear quadrupole moment
0
time of discovery or invention2018
parity+

decay modeintensity
α (α emission)100%

109Xe

mass number109
neutron number55
relative atomic mass
108.950434955 ± 0.000322178 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
13 ± 2 ms
spin7/2
nuclear quadrupole moment
time of discovery or invention2006
parity+

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

110Xe

mass number110
neutron number56
relative atomic mass
109.944258759 ± 0.000108415 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
93 ± 3 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1981
parity+

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

111Xe

mass number111
neutron number57
relative atomic mass
110.94147 ± 0.000124 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
740 ± 200 ms
spin5/2
nuclear quadrupole moment
time of discovery or invention1979
parity+

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

112Xe

mass number112
neutron number58
relative atomic mass
111.935559068 ± 0.000008891 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2.7 ± 0.8 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1978
parity+

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

113Xe

mass number113
neutron number59
relative atomic mass
112.933221663 ± 0.000007342 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2.74 ± 0.08 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1973
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

mass number114
neutron number60
relative atomic mass
113.927980329 ± 0.000012 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
10 ± 0.4 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1977
parity+

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

115Xe

mass number115
neutron number61
relative atomic mass
114.926293943 ± 0.000013 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
18 ± 3 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1969
parity+

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

116Xe

mass number116
neutron number62
relative atomic mass
115.921580955 ± 0.000013974 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
59 ± 2 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1969
parity+

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

117Xe

mass number117
neutron number63
relative atomic mass
116.920358758 ± 0.000011141 Da
g-factor
-0.23752 ± 0.0006
natural abundance
radioactivity☢️ radioactive element
half-life
61 ± 2 s
spin5/2
nuclear quadrupole moment
1.1 ± 0.4
time of discovery or invention1969
parity+

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

118Xe

mass number118
neutron number64
relative atomic mass
117.916178678 ± 0.000011141 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3.8 ± 0.9 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1965
parity+

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

119Xe

mass number119
neutron number65
relative atomic mass
118.915410641 ± 0.000011141 Da
g-factor
-0.26168 ± 0.0006
natural abundance
radioactivity☢️ radioactive element
half-life
5.8 ± 0.3 m
spin5/2
nuclear quadrupole moment
1.29 ± 0.05
time of discovery or invention1965
parity+

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

120Xe

mass number120
neutron number66
relative atomic mass
119.911784267 ± 0.000012686 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
46 ± 0.6 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1965
parity+

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

121Xe

mass number121
neutron number67
relative atomic mass
120.911453012 ± 0.000010995 Da
g-factor
-0.2804 ± 0.0012
natural abundance
radioactivity☢️ radioactive element
half-life
40.1 ± 2 m
spin5/2
nuclear quadrupole moment
1.31 ± 0.05
time of discovery or invention1952
parity+

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

122Xe

mass number122
neutron number68
relative atomic mass
121.908367655 ± 0.000011928 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
20.1 ± 0.1 h
spin0
nuclear quadrupole moment
0
time of discovery or invention1952
parity+

decay modeintensity
ϵ (electron capture)100%

123Xe

mass number123
neutron number69
relative atomic mass
122.908482235 ± 0.000010234 Da
g-factor
-0.3 ± 0.006
natural abundance
radioactivity☢️ radioactive element
half-life
2.08 ± 0.02 h
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1952
parity+

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

124Xe

mass number124
neutron number70
relative atomic mass
123.905885174 ± 0.000001457 Da
g-factor
0
natural abundance
0.095 ± 0.005
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1922
parity+

decay modeintensity
+ (double β+ decay)

125Xe

mass number125
neutron number71
relative atomic mass
124.90638764 ± 0.000001518 Da
g-factor
-0.538 ± 0.006
natural abundance
radioactivity☢️ radioactive element
half-life
16.87 ± 0.08 h
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1950
parity+

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

126Xe

mass number126
neutron number72
relative atomic mass
125.904297422 ± 0.000000006 Da
g-factor
0
natural abundance
0.089 ± 0.003
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1922
parity+

decay modeintensity
+ (double β+ decay)

127Xe

mass number127
neutron number73
relative atomic mass
126.905183636 ± 0.000004388 Da
g-factor
-1.0066 ± 0.0022
natural abundance
radioactivity☢️ radioactive element
half-life
36.342 ± 0.003 d
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1950
parity+

decay modeintensity
ϵ (electron capture)100%

128Xe

mass number128
neutron number74
relative atomic mass
127.90353075341 ± 0.00000000558 Da
g-factor
0
natural abundance
1.91 ± 0.013
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1922
parity+

129Xe

mass number129
neutron number75
relative atomic mass
128.90478085742 ± 0.00000000542 Da
g-factor
-1.555922 ± 0.000032
natural abundance
26.401 ± 0.138
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

130Xe

mass number130
neutron number76
relative atomic mass
129.903509346 ± 0.00000001 Da
g-factor
0
natural abundance
4.071 ± 0.022
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1922
parity+

131Xe

mass number131
neutron number77
relative atomic mass
130.90508412808 ± 0.00000000549 Da
g-factor
0.46123 ± 0.0000046666666666667
natural abundance
21.232 ± 0.051
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
-0.114 ± 0.001
time of discovery or invention1920
parity+

132Xe

mass number132
neutron number78
relative atomic mass
131.90415508346 ± 0.00000000544 Da
g-factor
0
natural abundance
26.909 ± 0.055
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

133Xe

mass number133
neutron number79
relative atomic mass
132.905910748 ± 0.000002576 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5.2474 ± 0.0005 d
spin3/2
nuclear quadrupole moment
0.14 ± 0.005
time of discovery or invention1940
parity+

decay modeintensity
β (β decay)100%

134Xe

mass number134
neutron number80
relative atomic mass
133.90539303 ± 0.000000006 Da
g-factor
0
natural abundance
10.436 ± 0.035
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

decay modeintensity
(double β decay)

135Xe

mass number135
neutron number81
relative atomic mass
134.907231441 ± 0.000003938 Da
g-factor
0.60213333333333 ± 0.00046666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
9.14 ± 0.02 h
spin3/2
nuclear quadrupole moment
0.21 ± 0.007
time of discovery or invention1940
parity+

decay modeintensity
β (β decay)100%

136Xe

mass number136
neutron number82
relative atomic mass
135.907214474 ± 0.000000007 Da
g-factor
0
natural abundance
8.857 ± 0.072
radioactivity☢️ radioactive element
half-life
2.18 ± 0.05 Zy
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

decay modeintensity
(double β decay)100%

137Xe

mass number137
neutron number83
relative atomic mass
136.911557771 ± 0.000000111 Da
g-factor
-0.27725714285714 ± 0.00028571428571429
natural abundance
radioactivity☢️ radioactive element
half-life
3.818 ± 0.013 m
spin7/2
nuclear quadrupole moment
-0.47 ± 0.02
time of discovery or invention1943
parity-

decay modeintensity
β (β decay)100%

138Xe

mass number138
neutron number84
relative atomic mass
137.914146268 ± 0.00000301 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
14.14 ± 0.07 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1943
parity+

decay modeintensity
β (β decay)100%

139Xe

mass number139
neutron number85
relative atomic mass
138.9187922 ± 0.0000023 Da
g-factor
-0.20266666666667 ± 0.0010666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
39.68 ± 0.14 s
spin3/2
nuclear quadrupole moment
0.39 ± 0.02
time of discovery or invention1951
parity-

decay modeintensity
β (β decay)100%

140Xe

mass number140
neutron number86
relative atomic mass
139.921645814 ± 0.0000025 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
13.6 ± 0.1 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1951
parity+

decay modeintensity
β (β decay)100%

141Xe

mass number141
neutron number87
relative atomic mass
140.926787181 ± 0.0000031 Da
g-factor
0.004 ± 0.0012
natural abundance
radioactivity☢️ radioactive element
half-life
1.73 ± 0.01 s
spin5/2
nuclear quadrupole moment
-0.57 ± 0.02
time of discovery or invention1951
parity-

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

142Xe

mass number142
neutron number88
relative atomic mass
141.929973095 ± 0.0000029 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1.23 ± 0.02 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1960
parity+

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

143Xe

mass number143
neutron number89
relative atomic mass
142.93536955 ± 0.000005 Da
g-factor
-0.184 ± 0.0008
natural abundance
radioactivity☢️ radioactive element
half-life
511 ± 6 ms
spin5/2
nuclear quadrupole moment
0.91 ± 0.03
time of discovery or invention1951
parity-

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

144Xe

mass number144
neutron number90
relative atomic mass
143.938945076 ± 0.0000057 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
388 ± 7 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention2003
parity+

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

145Xe

mass number145
neutron number91
relative atomic mass
144.944719631 ± 0.000012 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
188 ± 4 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention2003
parity-

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

146Xe

mass number146
neutron number92
relative atomic mass
145.948518245 ± 0.000026 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
146 ± 6 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1989
parity+

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

147Xe

mass number147
neutron number93
relative atomic mass
146.954482 ± 0.000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
88 ± 14 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention1994
parity-

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

148Xe

mass number148
neutron number94
relative atomic mass
147.958508 ± 0.000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
85 ± 15 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention2010
parity+

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

149Xe

mass number149
neutron number95
relative atomic mass
148.964573 ± 0.000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
time of discovery or invention2018
parity-

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

150Xe

mass number150
neutron number96
relative atomic mass
149.968878 ± 0.000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention2018
parity+

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

storja

discoverer or inventorSir William Ramsay; M. W. Travers
location of discoveryEngland
time of discovery or invention1898
etimoloġijaGreek: xenos (strange).
pronunciationZEE-non (Ingliż)

source

Abundance
Abundance in Earth's crust
0.00003 mg/kg
natural abundance (ocean)
0.00005 mg/L
natural abundance (human body)
natural abundance (meteoroid)
natural abundance (Xemx)
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