Atomnummer | 56 |
---|---|
Atommasse | 137.327 |
mass number | 138 |
Gruppe | 2 |
---|---|
Periode | 6 |
Blok | s |
proton | 56 p+ |
---|---|
neutron | 82 n0 |
elektron | 56 e- |
Atomradius | |
---|---|
molar volume | |
Kovalent Radius | |
Metallic Radius | |
Ionisk radius | |
Crystal Radius | |
Van der Waals-radius | |
massefylde |
energi | |
---|---|
proton affinity | |
electron affinity | |
ioniseringsenergi | |
Fordampningsvarme | |
smeltevarme | |
standard enthalpy of formation | |
elektron | |
Elektronskal | 2, 8, 18, 18, 8, 2 |
Valenselektron | 2 ⓘ |
electron configuration | [Xe] 6s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 |
Oxidationstrin | 1, 2 |
Elektronegativitet | 0.89
|
Electrophilicity Index | |
fundamental state of matter | |
stoffase | Fast stof |
gaseous state of matter | |
Kogepunkt | |
Smeltepunkt | |
critical pressure | |
critical temperature | |
trippelpunkt | |
appearance | |
farve | Silver
|
appearance | |
Brydningsindeks | |
materialeegenskab | |
Varmeledningsevne | |
Termisk ekspansion | |
molar heat capacity | |
Varmefylde | |
Adiabateksponenten | |
electrical properties | |
type | Conductor |
specifik ledningsevne | |
Elektrisk resistivitet | |
superledning | |
Magnetisme | |
type | paramagnetic |
magnetic susceptibility (Mass) | 0,0000000113 m³/Kg
|
magnetic susceptibility (Molar) | 0,000000001552 m³/mol
|
magnetic susceptibility (Volume) | 0,00003966
|
magnetic ordering | |
Curietemperaturen | |
Néel temperature | |
struktur | |
Krystalstruktur | Rumcentreret Kubisk (BCC) |
lattice constant | |
Lattice Angles | π/2, π/2, π/2 |
mechanical property | |
hårdhed | |
Kompressibilitetsmodul | |
Forskydningsmodul | |
E-modul | |
Poissons forhold | |
speed of sound | |
klassificering | |
Kategori | Jordalkalimetaller, Alkaline earth metals |
CAS Group | IIA |
IUPAC Group | IIA |
Glawe Number | 14 |
Mendeleev Number | 9 |
Pettifor Number | 14 |
Geochemical Class | alkaline earth metal |
Goldschmidt classification | litophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 1,3
|
Neutron Mass Absorption | 0,00027
|
quantum number | 1S0 |
rumgruppe | 229 (Im_3m) |
Stable Isotopes | 5 |
---|---|
Unstable Isotopes | 37 |
Natural Isotopes | 7 |
mass number | 113 |
---|---|
neutron number | 57 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | |
Paritet | + |
decay mode | Intensitet |
---|---|
p (proton emission) | |
α (α emission) |
mass number | 114 |
---|---|
neutron number | 58 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 460 ± 125 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1995 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 20% |
α (α emission) | 0.9% |
12C | 0.0034% |
mass number | 115 |
---|---|
neutron number | 59 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 450 ± 50 ms
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1997 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 15% |
mass number | 116 |
---|---|
neutron number | 60 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1,3 ± 0,2 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1997 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 3% |
mass number | 117 |
---|---|
neutron number | 61 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1,75 ± 0,07 s
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1977 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 13% |
β+α (β+-delayed α emission) | 0.024% |
mass number | 118 |
---|---|
neutron number | 62 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 5,2 ± 0,2 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1997 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 119 |
---|---|
neutron number | 63 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 5,4 ± 0,3 s
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1974 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 25% |
mass number | 120 |
---|---|
neutron number | 64 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 24 ± 2 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1974 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 121 |
---|---|
neutron number | 65 |
Relative Atomic Mass | |
g-factor | 0,264 ± 0,0004
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 29,7 ± 1,5 s
|
spin | 5/2 |
nuclear quadrupole moment | 1,89 ± 0,13
|
opdagelsesdato | 1975 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0.02% |
mass number | 122 |
---|---|
neutron number | 66 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1,95 ± 0,15 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1974 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 123 |
---|---|
neutron number | 67 |
Relative Atomic Mass | |
g-factor | -0,272 ± 0,0004
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 2,7 ± 0,4 m
|
spin | 5/2 |
nuclear quadrupole moment | 1,57 ± 0,13
|
opdagelsesdato | 1962 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 124 |
---|---|
neutron number | 68 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 11 ± 0,5 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1967 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 125 |
---|---|
neutron number | 69 |
Relative Atomic Mass | |
g-factor | 0,354 ± 0,024
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 3,3 ± 0,3 m
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1968 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 126 |
---|---|
neutron number | 70 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 100 ± 2 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1954 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 127 |
---|---|
neutron number | 71 |
Relative Atomic Mass | |
g-factor | 0,1668 ± 0,002
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 12,7 ± 0,4 m
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1952 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 128 |
---|---|
neutron number | 72 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 2,43 ± 0,05 d
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1950 |
Paritet | + |
decay mode | Intensitet |
---|---|
ϵ (electron capture) | 100% |
mass number | 129 |
---|---|
neutron number | 73 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 2,23 ± 0,11 h
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1950 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 130 |
---|---|
neutron number | 74 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0,11 ± 0,01
|
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1936 |
Paritet | + |
decay mode | Intensitet |
---|---|
2β+ (double β+ decay) |
mass number | 131 |
---|---|
neutron number | 75 |
Relative Atomic Mass | |
g-factor | 1,4166 ± 0,0004
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 11,52 ± 0,01 d
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1947 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 132 |
---|---|
neutron number | 76 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0,1 ± 0,01
|
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1936 |
Paritet | + |
decay mode | Intensitet |
---|---|
2β+ (double β+ decay) |
mass number | 133 |
---|---|
neutron number | 77 |
Relative Atomic Mass | |
g-factor | 1,5438 ± 0,0004
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 10,5379 ± 0,0016 y
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1941 |
Paritet | + |
decay mode | Intensitet |
---|---|
ϵ (electron capture) | 100% |
mass number | 134 |
---|---|
neutron number | 78 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 2,42 ± 0,15
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1936 |
Paritet | + |
mass number | 135 |
---|---|
neutron number | 79 |
Relative Atomic Mass | |
g-factor | 0,55873333333333 ± 0,00013333333333333
|
natural abundance | 6,59 ± 0,1
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 3/2 |
nuclear quadrupole moment | 0,153 ± 0,002
|
opdagelsesdato | 1932 |
Paritet | + |
mass number | 136 |
---|---|
neutron number | 80 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 7,85 ± 0,24
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1932 |
Paritet | + |
mass number | 137 |
---|---|
neutron number | 81 |
Relative Atomic Mass | |
g-factor | 0,625 ± 0,00013333333333333
|
natural abundance | 11,23 ± 0,23
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 3/2 |
nuclear quadrupole moment | 0,236 ± 0,003
|
opdagelsesdato | 1932 |
Paritet | + |
mass number | 138 |
---|---|
neutron number | 82 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 71,7 ± 0,29
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1925 |
Paritet | + |
mass number | 139 |
---|---|
neutron number | 83 |
Relative Atomic Mass | |
g-factor | -0,278 ± 0,0014285714285714
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 82,93 ± 0,09 m
|
spin | 7/2 |
nuclear quadrupole moment | -0,552 ± 0,013
|
opdagelsesdato | 1937 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 140 |
---|---|
neutron number | 84 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 12,7534 ± 0,0021 d
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1939 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 141 |
---|---|
neutron number | 85 |
Relative Atomic Mass | |
g-factor | -0,22466666666667 ± 0,0033333333333333
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 18,27 ± 0,07 m
|
spin | 3/2 |
nuclear quadrupole moment | 0,437 ± 0,01
|
opdagelsesdato | 1945 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 142 |
---|---|
neutron number | 86 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 10,6 ± 0,2 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1959 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 143 |
---|---|
neutron number | 87 |
Relative Atomic Mass | |
g-factor | 0,1772 ± 0,0044
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 14,5 ± 0,3 s
|
spin | 5/2 |
nuclear quadrupole moment | -0,85 ± 0,02
|
opdagelsesdato | 1962 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 144 |
---|---|
neutron number | 88 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 11,73 ± 0,08 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1967 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 145 |
---|---|
neutron number | 89 |
Relative Atomic Mass | |
g-factor | -0,114 ± 0,0028
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 4,31 ± 0,16 s
|
spin | 5/2 |
nuclear quadrupole moment | 1,18 ± 0,02
|
opdagelsesdato | 1974 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 146 |
---|---|
neutron number | 90 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 2,15 ± 0,04 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1970 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 147 |
---|---|
neutron number | 91 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 893 ± 1 ms
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1978 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.07% |
mass number | 148 |
---|---|
neutron number | 92 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 620 ± 5 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1979 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.4% |
mass number | 149 |
---|---|
neutron number | 93 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 349 ± 4 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1993 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 3.9% |
mass number | 150 |
---|---|
neutron number | 94 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 258 ± 5 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1994 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 1% |
mass number | 151 |
---|---|
neutron number | 95 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 167 ± 5 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1994 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 152 |
---|---|
neutron number | 96 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 139 ± 8 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 2010 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 153 |
---|---|
neutron number | 97 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 113 ± 39 ms
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 2016 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 154 |
---|---|
neutron number | 98 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 53 ± 48 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 2017 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
opdager eller opfinder | Sir Humphrey Davy |
---|---|
fundsted | England |
opdagelsesdato | 1808 |
etymologi | Greek: barys (heavy or dense). |
udtale | BAR-i-em (engelsk) |
Forekomst | |
---|---|
Abundance in Earth's crust | |
natural abundance (verdenshave) | |
natural abundance (menneskelige krop) | 0,00003 %
|
natural abundance (Meteoroid) | 0,00027 %
|
natural abundance (Solen) | 0,000001 %
|
Abundance in Universe | 0,000001 %
|
1 | s | 1.1139 |
2 | p | 4.1904 |
2 | s | 14.7532 |
3 | d | 13.9757 |
3 | p | 18.6836 |
3 | s | 18.8444 |
4 | d | 32.216 |
4 | p | 29.1968 |
4 | s | 28.08 |
5 | p | 41.1995 |
5 | s | 39.3805 |
6 | s | 48.425 |