Atomnummer | 60 |
---|---|
Atommasse | 144.242 |
mass number | 142 |
Gruppe | |
---|---|
Periode | 6 |
Blok | f |
proton | 60 p+ |
---|---|
neutron | 82 n0 |
elektron | 60 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, 22, 8, 2 |
Valenselektron | 2 ⓘ |
electron configuration | [Xe] 4f4 6s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f4 6s2 |
Oxidationstrin | 0, 2, 3, 4 |
Elektronegativitet |
1.14
|
Electrophilicity Index | |
fundamental state of matter | |
stoffase | Fast stof |
gaseous state of matter | |
Kogepunkt | |
Smeltepunkt | |
critical pressure | |
critical temperature | |
trippelpunkt | |
appearance | |
farve | Silver
|
appearance | silvery white |
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) | 0,00000048 m³/Kg
|
magnetic susceptibility (Molar) | 0,000000069235 m³/mol
|
magnetic susceptibility (Volume) | 0,0033648
|
magnetic ordering | |
Curietemperaturen | |
Néel temperature | |
struktur | |
Krystalstruktur | Simpel Hexagonal (HEX) |
lattice constant | |
Lattice Angles | π/2, π/2, 2 π/3 |
mechanical property | |
hårdhed | |
Kompressibilitetsmodul | |
Forskydningsmodul | |
E-modul | |
Poissons forhold | 0,28
|
speed of sound | |
klassificering | |
Kategori | Lantanider, Lanthanides |
CAS Group | |
IUPAC Group | |
Glawe Number | 29 |
Mendeleev Number | 19 |
Pettifor Number | 30 |
Geochemical Class | rare earth & related |
Goldschmidt classification | litophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 49
|
Neutron Mass Absorption | 0,011
|
quantum number | 5I4 |
rumgruppe | 194 (P63/mmc) |
Stable Isotopes | 2 |
---|---|
Unstable Isotopes | 38 |
Natural Isotopes | 7 |
mass number | 124 |
---|---|
neutron number | 64 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | |
β+ p (β+-delayed proton emission) |
mass number | 125 |
---|---|
neutron number | 65 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 650 ± 150 ms
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1999 |
Paritet |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0% |
mass number | 126 |
---|---|
neutron number | 66 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 2000 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | |
β+ p (β+-delayed proton emission) |
mass number | 127 |
---|---|
neutron number | 67 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1,8 ± 0,4 s
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1983 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 128 |
---|---|
neutron number | 68 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1985 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 129 |
---|---|
neutron number | 69 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 6,8 ± 0,6 s
|
spin | 7/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1977 |
Paritet | - |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 130 |
---|---|
neutron number | 70 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 21 ± 3 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1977 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 131 |
---|---|
neutron number | 71 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 25,4 ± 0,9 s
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1977 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 132 |
---|---|
neutron number | 72 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1,56 ± 0,1 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1977 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 133 |
---|---|
neutron number | 73 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 70 ± 10 s
|
spin | 7/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1977 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 134 |
---|---|
neutron number | 74 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 8,5 ± 1,5 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1970 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 135 |
---|---|
neutron number | 75 |
Relative Atomic Mass | |
g-factor | -0,17333333333333 ± 0,0066666666666667
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 12,4 ± 0,6 m
|
spin | 9/2 |
nuclear quadrupole moment | 1,9 ± 0,5
|
opdagelsesdato | 1970 |
Paritet | - |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 136 |
---|---|
neutron number | 76 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 50,65 ± 0,33 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1968 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 137 |
---|---|
neutron number | 77 |
Relative Atomic Mass | |
g-factor | -1,264 ± 0,01
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 38,5 ± 1,5 m
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1970 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 138 |
---|---|
neutron number | 78 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 5,04 ± 0,09 h
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1965 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 139 |
---|---|
neutron number | 79 |
Relative Atomic Mass | |
g-factor | 0,60333333333333 ± 0,0046666666666667
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 29,7 ± 0,5 m
|
spin | 3/2 |
nuclear quadrupole moment | 0,28 ± 0,09
|
opdagelsesdato | 1951 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 140 |
---|---|
neutron number | 80 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 3,37 ± 0,02 d
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1949 |
Paritet | + |
decay mode | Intensitet |
---|---|
ϵ (electron capture) | 100% |
mass number | 141 |
---|---|
neutron number | 81 |
Relative Atomic Mass | |
g-factor | 0,67333333333333 ± 0,006
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 2,49 ± 0,03 h
|
spin | 3/2 |
nuclear quadrupole moment | 0,32 ± 0,13
|
opdagelsesdato | 1949 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
ϵ (electron capture) | 97.28% |
e+ (positron emission) | 2.72% |
mass number | 142 |
---|---|
neutron number | 82 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 27,153 ± 0,04
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1924 |
Paritet | + |
mass number | 143 |
---|---|
neutron number | 83 |
Relative Atomic Mass | |
g-factor | -0,30428571428571 ± 0,0014285714285714
|
natural abundance | 12,173 ± 0,026
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 7/2 |
nuclear quadrupole moment | -0,61 ± 0,02
|
opdagelsesdato | 1933 |
Paritet | - |
mass number | 144 |
---|---|
neutron number | 84 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 23,798 ± 0,019
|
radioaktivitet | ☢️ radioactive element |
halveringstid | 2,29 ± 0,16 Py
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1924 |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
mass number | 145 |
---|---|
neutron number | 85 |
Relative Atomic Mass | |
g-factor | -0,18742857142857 ± 0,0011428571428571
|
natural abundance | 8,293 ± 0,012
|
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 7/2 |
nuclear quadrupole moment | -0,314 ± 0,012
|
opdagelsesdato | 1933 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) |
mass number | 146 |
---|---|
neutron number | 86 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 17,189 ± 0,032
|
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1924 |
Paritet | + |
decay mode | Intensitet |
---|---|
2β− (double β− decay) | |
α (α emission) |
mass number | 147 |
---|---|
neutron number | 87 |
Relative Atomic Mass | |
g-factor | 0,2216 ± 0,004
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 10,98 ± 0,01 d
|
spin | 5/2 |
nuclear quadrupole moment | 0,9 ± 0,3
|
opdagelsesdato | 1947 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 148 |
---|---|
neutron number | 88 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 5,756 ± 0,021
|
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1937 |
Paritet | + |
decay mode | Intensitet |
---|---|
2β− (double β− decay) | |
α (α emission) |
mass number | 149 |
---|---|
neutron number | 89 |
Relative Atomic Mass | |
g-factor | 0,1404 ± 0,004
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1,728 ± 0,001 h
|
spin | 5/2 |
nuclear quadrupole moment | 1,3 ± 0,3
|
opdagelsesdato | 1938 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 150 |
---|---|
neutron number | 90 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 5,638 ± 0,028
|
radioaktivitet | ☢️ radioactive element |
halveringstid | 9,3 ± 0,7 Ey
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1937 |
Paritet | + |
decay mode | Intensitet |
---|---|
2β− (double β− decay) | 100% |
mass number | 151 |
---|---|
neutron number | 91 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 12,44 ± 0,07 m
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1938 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 152 |
---|---|
neutron number | 92 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 11,4 ± 0,2 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1969 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 153 |
---|---|
neutron number | 93 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 31,6 ± 1 s
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1987 |
Paritet |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 154 |
---|---|
neutron number | 94 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 25,9 ± 0,2 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1970 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 155 |
---|---|
neutron number | 95 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 8,9 ± 0,2 s
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1986 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 156 |
---|---|
neutron number | 96 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 5,06 ± 0,13 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1987 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 157 |
---|---|
neutron number | 97 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1,15 ± 0,03 s
|
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1992 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 158 |
---|---|
neutron number | 98 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 810 ± 30 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1992 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 159 |
---|---|
neutron number | 99 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 500 ± 30 ms
|
spin | 7/2 |
nuclear quadrupole moment | |
opdagelsesdato | 2012 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 160 |
---|---|
neutron number | 100 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 439 ± 37 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1985 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 161 |
---|---|
neutron number | 101 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 215 ± 76 ms
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 2012 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 162 |
---|---|
neutron number | 102 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 310 ± 200 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 2012 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 163 |
---|---|
neutron number | 103 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 5/2 |
nuclear quadrupole moment | |
opdagelsesdato | 2018 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) |
opdager eller opfinder | C.F. Aver von Welsbach |
---|---|
fundsted | Austria |
opdagelsesdato | 1925 |
etymologi | Greek: neos and didymos (new twin). |
udtale | nee-eh-DIM-i-em (engelsk) |
Forekomst | |
---|---|
Abundance in Earth's crust | |
natural abundance (verdenshave) | |
natural abundance (menneskelige krop) | |
natural abundance (Meteoroid) | 0,00005 %
|
natural abundance (Solen) | 0,0000003 %
|
Abundance in Universe | 0,000001 %
|
1 | s | 1.1868 |
2 | p | 4.2434 |
2 | s | 15.7838 |
3 | d | 13.8432 |
3 | p | 19.311 |
3 | s | 19.6572 |
4 | d | 33.1908 |
4 | f | 37.734 |
4 | p | 29.986 |
4 | s | 29.0136 |
5 | p | 43.039 |
5 | s | 41.2575 |
6 | s | 50.6934 |