Atomic Number | 54 |
---|---|
Atomic Weight | 131.293 |
mass number | 132 |
Group | 18 |
---|---|
Period | 5 |
Block | p |
Proton | 54 p+ |
---|---|
Netron | 78 n0 |
Eléktron | 54 e- |
Atomic Radius | |
---|---|
molar volume | |
covalent radius | |
Metallic Radius | |
ionic radius | |
Crystal Radius | |
Van der Waals radius | |
density |
molungé | |
---|---|
proton affinity | |
electron affinity | |
ionization energy | |
enthalpy of vaporization | |
enthalpy of fusion | |
standard enthalpy of formation | |
Eléktron | |
electron shell | 2, 8, 18, 18, 8 |
valence electron | 8 ⓘ |
electron configuration | [Kr] 4d10 5s2 5p6ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10 5s2 5p6 |
oxidation number | 0, 2, 4, 6, 8 |
electronegativity | 2.6
|
Electrophilicity Index | |
fundamental state of matter | |
phase of matter | Gas |
gaseous state of matter | Monoatomic |
Boiling Point | |
Melting Point | |
critical pressure | |
critical temperature | |
triple point | |
appearance | |
Lángi | Colorless
|
appearance | colorless gas, exhibiting a blue glow when placed in a high voltage electric field |
refractive index | 1,000702
|
thermodynamic material property | |
Thermal Conductivity | |
thermal expansion | |
molar heat capacity | |
Specific Heat Capacity | |
heat capacity ratio | 5/3 |
electrical properties | |
type | |
electrical conductivity | |
electrical resistivity | |
superconductivity | |
magnetism | |
type | diamagnetic |
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 Structure | Face Centered Cubic (FCC) |
lattice constant | |
Lattice Angles | π/2, π/2, π/2 |
mechanical property | |
hardness | |
bulk modulus | |
shear modulus | |
Young's modulus | |
Poisson's ratio | |
speed of sound | |
classification | |
Category | Noble gases, Noble gases |
CAS Group | VIII |
IUPAC Group | VIIIA |
Glawe Number | 5 |
Mendeleev Number | 116 |
Pettifor Number | 5 |
Geochemical Class | volatile |
Goldschmidt classification | atmophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 25
|
Neutron Mass Absorption | 0,0083
|
quantum number | 1S0 |
space group | 225 (Fm_3m) |
Stable Isotopes | 5 |
---|---|
Unstable Isotopes | 38 |
Natural Isotopes | 9 |
mass number | 108 |
---|---|
neutron number | 54 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 72 ± 35 us
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2018 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 109 |
---|---|
neutron number | 55 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 13 ± 2 ms
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2006 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) | |
β+ p (β+-delayed proton emission) |
mass number | 110 |
---|---|
neutron number | 56 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 93 ± 3 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1981 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 64% |
β+ (β+ decay; β+ = ϵ + e+) | 36% |
β+ p (β+-delayed proton emission) |
mass number | 111 |
---|---|
neutron number | 57 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 740 ± 200 ms
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1979 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 89.6% |
α (α emission) | 10.4% |
β+ p (β+-delayed proton emission) |
mass number | 112 |
---|---|
neutron number | 58 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2,7 ± 0,8 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1978 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 98.8% |
α (α emission) | 1.2% |
β+ p (β+-delayed proton emission) |
mass number | 113 |
---|---|
neutron number | 59 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2,74 ± 0,08 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1973 |
parity | + |
decay mode | intensity |
---|---|
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% |
mass number | 114 |
---|---|
neutron number | 60 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 10 ± 0,4 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1977 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 115 |
---|---|
neutron number | 61 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 18 ± 3 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1969 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0.34% |
mass number | 116 |
---|---|
neutron number | 62 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 59 ± 2 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1969 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 117 |
---|---|
neutron number | 63 |
Relative Atomic Mass | |
g-factor | -0,23752 ± 0,0006
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 61 ± 2 s
|
spin | 5/2 |
nuclear quadrupole moment | 1,1 ± 0,4
|
time of discovery or invention | 1969 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0.0029% |
mass number | 118 |
---|---|
neutron number | 64 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 3,8 ± 0,9 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1965 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 119 |
---|---|
neutron number | 65 |
Relative Atomic Mass | |
g-factor | -0,26168 ± 0,0006
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 5,8 ± 0,3 m
|
spin | 5/2 |
nuclear quadrupole moment | 1,29 ± 0,05
|
time of discovery or invention | 1965 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
e+ (positron emission) | 79% |
ϵ (electron capture) | 21% |
mass number | 120 |
---|---|
neutron number | 66 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 46 ± 0,6 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1965 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 121 |
---|---|
neutron number | 67 |
Relative Atomic Mass | |
g-factor | -0,2804 ± 0,0012
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 40,1 ± 2 m
|
spin | 5/2 |
nuclear quadrupole moment | 1,31 ± 0,05
|
time of discovery or invention | 1952 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 122 |
---|---|
neutron number | 68 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 20,1 ± 0,1 h
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1952 |
parity | + |
decay mode | intensity |
---|---|
ϵ (electron capture) | 100% |
mass number | 123 |
---|---|
neutron number | 69 |
Relative Atomic Mass | |
g-factor | -0,3 ± 0,006
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2,08 ± 0,02 h
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1952 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 124 |
---|---|
neutron number | 70 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0,095 ± 0,005
|
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1922 |
parity | + |
decay mode | intensity |
---|---|
2β+ (double β+ decay) |
mass number | 125 |
---|---|
neutron number | 71 |
Relative Atomic Mass | |
g-factor | -0,538 ± 0,006
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 16,87 ± 0,08 h
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1950 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 126 |
---|---|
neutron number | 72 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0,089 ± 0,003
|
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1922 |
parity | + |
decay mode | intensity |
---|---|
2β+ (double β+ decay) |
mass number | 127 |
---|---|
neutron number | 73 |
Relative Atomic Mass | |
g-factor | -1,0066 ± 0,0022
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 36,342 ± 0,003 d
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1950 |
parity | + |
decay mode | intensity |
---|---|
ϵ (electron capture) | 100% |
mass number | 128 |
---|---|
neutron number | 74 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 1,91 ± 0,013
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1922 |
parity | + |
mass number | 129 |
---|---|
neutron number | 75 |
Relative Atomic Mass | |
g-factor | -1,555922 ± 0,000032
|
natural abundance | 26,401 ± 0,138
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1920 |
parity | + |
mass number | 130 |
---|---|
neutron number | 76 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 4,071 ± 0,022
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1922 |
parity | + |
mass number | 131 |
---|---|
neutron number | 77 |
Relative Atomic Mass | |
g-factor | 0,46123 ± 0,0000046666666666667
|
natural abundance | 21,232 ± 0,051
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 3/2 |
nuclear quadrupole moment | -0,114 ± 0,001
|
time of discovery or invention | 1920 |
parity | + |
mass number | 132 |
---|---|
neutron number | 78 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 26,909 ± 0,055
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1920 |
parity | + |
mass number | 133 |
---|---|
neutron number | 79 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 5,2474 ± 0,0005 d
|
spin | 3/2 |
nuclear quadrupole moment | 0,14 ± 0,005
|
time of discovery or invention | 1940 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 134 |
---|---|
neutron number | 80 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 10,436 ± 0,035
|
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1920 |
parity | + |
decay mode | intensity |
---|---|
2β− (double β− decay) |
mass number | 135 |
---|---|
neutron number | 81 |
Relative Atomic Mass | |
g-factor | 0,60213333333333 ± 0,00046666666666667
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 9,14 ± 0,02 h
|
spin | 3/2 |
nuclear quadrupole moment | 0,21 ± 0,007
|
time of discovery or invention | 1940 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 136 |
---|---|
neutron number | 82 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 8,857 ± 0,072
|
radioactivity | ☢️ radioactive element |
half-life | 2,18 ± 0,05 Zy
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1920 |
parity | + |
decay mode | intensity |
---|---|
2β− (double β− decay) | 100% |
mass number | 137 |
---|---|
neutron number | 83 |
Relative Atomic Mass | |
g-factor | -0,27725714285714 ± 0,00028571428571429
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 3,818 ± 0,013 m
|
spin | 7/2 |
nuclear quadrupole moment | -0,47 ± 0,02
|
time of discovery or invention | 1943 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 138 |
---|---|
neutron number | 84 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 14,14 ± 0,07 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1943 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 139 |
---|---|
neutron number | 85 |
Relative Atomic Mass | |
g-factor | -0,20266666666667 ± 0,0010666666666667
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 39,68 ± 0,14 s
|
spin | 3/2 |
nuclear quadrupole moment | 0,39 ± 0,02
|
time of discovery or invention | 1951 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 140 |
---|---|
neutron number | 86 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 13,6 ± 0,1 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1951 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 141 |
---|---|
neutron number | 87 |
Relative Atomic Mass | |
g-factor | 0,004 ± 0,0012
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1,73 ± 0,01 s
|
spin | 5/2 |
nuclear quadrupole moment | -0,57 ± 0,02
|
time of discovery or invention | 1951 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.044% |
mass number | 142 |
---|---|
neutron number | 88 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1,23 ± 0,02 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1960 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.37% |
mass number | 143 |
---|---|
neutron number | 89 |
Relative Atomic Mass | |
g-factor | -0,184 ± 0,0008
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 511 ± 6 ms
|
spin | 5/2 |
nuclear quadrupole moment | 0,91 ± 0,03
|
time of discovery or invention | 1951 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 1% |
mass number | 144 |
---|---|
neutron number | 90 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 388 ± 7 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2003 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 3% |
mass number | 145 |
---|---|
neutron number | 91 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 188 ± 4 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2003 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 5% |
2n (2-neutron emission) |
mass number | 146 |
---|---|
neutron number | 92 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 146 ± 6 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1989 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 6.9% |
mass number | 147 |
---|---|
neutron number | 93 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 88 ± 14 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1994 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 8% |
2n (2-neutron emission) |
mass number | 148 |
---|---|
neutron number | 94 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 85 ± 15 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2010 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 149 |
---|---|
neutron number | 95 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2018 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 150 |
---|---|
neutron number | 96 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2018 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
discoverer or inventor | Sir William Ramsay; M. W. Travers |
---|---|
location of discovery | England |
time of discovery or invention | 1898 |
etymology | Greek: xenos (strange). |
pronunciation | ZEE-non (lingɛlɛ́sa) |
Abundance | |
---|---|
Abundance in Earth's crust | |
natural abundance (ocean) | |
natural abundance (human body) | |
natural abundance (meteoroid) | |
natural abundance (Mói) | |
Abundance in Universe | 0,000001 %
|
1 | s | 1.0785 |
2 | p | 4.1654 |
2 | s | 14.197 |
3 | d | 14.0532 |
3 | p | 18.3324 |
3 | s | 18.4236 |
4 | d | 32.1068 |
4 | p | 29.0428 |
4 | s | 27.8272 |
5 | p | 41.5755 |
5 | s | 39.782 |