| Atomnummer | 94 |
|---|---|
| Atommassa | 244 |
| masstal | 221 |
| Grupp | |
|---|---|
| Period | 7 |
| Block | f |
| proton | 94 p+ |
|---|---|
| neutron | 127 n0 |
| elektron | 94 e- |
| Atomradie | |
|---|---|
| molvolym | |
| Kovalent Radie | |
| Metallic Radius | |
| ionic radius | |
| Crystal Radius | |
| Van der Waalsradie | |
| densitet |
| energi | |
|---|---|
| proton affinity | |
| Elektronaffinitet | |
| joniseringsenergi | |
| ångbildningsvärme | |
| smältvärme | |
| Bildningsentalpi | |
| elektron | |
| electron shell | 2, 8, 18, 32, 24, 8, 2 |
| valenselektron | 2 ⓘ |
| elektronkonfiguration | [Rn] 5f6 7s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f6 7s2 |
| oxidationstal | 2, 3, 4, 5, 6, 7, 8 |
| elektronegativitet |
1.3
|
| Electrophilicity Index | |
| fundamental state of matter | |
| aggregationstillstånd | {ERROR}|
| gaseous state of matter | |
| Kokpunkt | |
| Smältpunkt | |
| critical pressure | |
| critical temperature | |
| trippelpunkt | |
| appearance | |
| färg | Svart
|
| appearance | silvery white, tarnishing to dark gray in air |
| Brytningsindex | |
| materialegenskap | |
| Värmeledningsförmåga | |
| termisk expansion | |
| molar heat capacity | |
| Specifik värmekapacitet | |
| heat capacity ratio | |
| electrical properties | |
| type | Conductor |
| elektrisk konduktivitet | |
| resistivitet | |
| supraledare | |
| magnetism | |
| type | paramagnetic |
| magnetisk susceptibilitet (Mass) | 0,0000000317 m³/Kg
|
| magnetisk susceptibilitet (Molar) | 0,000000007735 m³/mol
|
| magnetisk susceptibilitet (Volume) | 0,0006282
|
| magnetic ordering | |
| Curiepunkten | |
| Néel temperature | |
| struktur | |
| Kristallstruktur | {ERROR} |
| Gitterkonstant | |
| Lattice Angles | π/2, 1.776571, π/2 |
| mekanisk materialegenskap | |
| hårdhet | |
| Kompressibilitet | |
| skjuvmodul | |
| Young's modulus | |
| Poissons konstant | 0,21
|
| ljudhastighet | |
| klassificering | |
| Kategori | Aktinider, Actinides |
| CAS Group | |
| IUPAC Group | |
| Glawe Number | 38 |
| Mendeleev Number | 24 |
| Pettifor Number | 43 |
| Geochemical Class | |
| Goldschmidt classification | synthetic |
| Gas Basicity | |
|---|---|
| Polariserbarhet | |
| C6 Dispersion Coefficient | |
| allotrope | |
| Träffyta | 1,7
|
| Neutron Mass Absorption | |
| kvanttal | 7F0 |
| rymdgrupp | 11 (P121/m1) |
| Stabila isotoper | 0 |
|---|---|
| Instabila isotoper | 27 |
| Natural Isotopes | 0 |
| masstal | 221 |
|---|---|
| neutrontal | 127 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | |
| Spinn | 9/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | |
| SF (spontaneous fission) |
| masstal | 222 |
|---|---|
| neutrontal | 128 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | |
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | |
| SF (spontaneous fission) |
| masstal | 223 |
|---|---|
| neutrontal | 129 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | |
| Spinn | 9/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | |
| SF (spontaneous fission) |
| masstal | 224 |
|---|---|
| neutrontal | 130 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | |
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | |
| SF (spontaneous fission) |
| masstal | 225 |
|---|---|
| neutrontal | 131 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | |
| Spinn | 7/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | |
| SF (spontaneous fission) |
| masstal | 226 |
|---|---|
| neutrontal | 132 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | |
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | |
| SF (spontaneous fission) |
| masstal | 227 |
|---|---|
| neutrontal | 133 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | |
| Spinn | 5/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) |
| masstal | 228 |
|---|---|
| neutrontal | 134 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 2,1 ± 1,3 s
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1994 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 100% |
| β+ (β+ decay; β+ = ϵ + e+) |
| masstal | 229 |
|---|---|
| neutrontal | 135 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 91 ± 26 s
|
| Spinn | 3/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | 1994 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 50% |
| β+ (β+ decay; β+ = ϵ + e+) | 50% |
| SF (spontaneous fission) | 7% |
| masstal | 230 |
|---|---|
| neutrontal | 136 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 105 ± 10 s
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1990 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 100% |
| β+ (β+ decay; β+ = ϵ + e+) |
| masstal | 231 |
|---|---|
| neutrontal | 137 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 8,6 ± 0,5 m
|
| Spinn | 3/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | 1999 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | |
| α (α emission) | 13% |
| masstal | 232 |
|---|---|
| neutrontal | 138 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 33,7 ± 0,5 m
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1973 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| ϵ (electron capture) | |
| α (α emission) | 20% |
| masstal | 233 |
|---|---|
| neutrontal | 139 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 20,9 ± 0,4 m
|
| Spinn | 5/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | 1957 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) | 0.12% |
| masstal | 234 |
|---|---|
| neutrontal | 140 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 8,8 ± 0,1 h
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1949 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| ϵ (electron capture) | 94% |
| α (α emission) | 6% |
| masstal | 235 |
|---|---|
| neutrontal | 141 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 25,3 ± 0,5 m
|
| Spinn | 5/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | 1957 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 99.9972% |
| α (α emission) | 0.0028% |
| masstal | 236 |
|---|---|
| neutrontal | 142 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 2,858 ± 0,008 y
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1949 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 1.9% |
| 28Mg | 2% |
| 2β+ (double β+ decay) |
| masstal | 237 |
|---|---|
| neutrontal | 143 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 45,64 ± 0,04 d
|
| Spinn | 7/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | 1949 |
| Paritet | - |
| decay mode | Intensitet |
|---|---|
| ϵ (electron capture) | 99.9958% |
| α (α emission) | 0.0042% |
| masstal | 238 |
|---|---|
| neutrontal | 144 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 87,7 ± 0,1 y
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1949 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 1.9% |
| 32Si | 1.4% |
| 30Mg | 6% |
| masstal | 239 |
|---|---|
| neutrontal | 145 |
| Relative Atomic Mass | |
| g-factor | 0,404 ± 0,008
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 24,11 ± 0,03 ky
|
| Spinn | 1/2 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1946 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 3.1% |
| masstal | 240 |
|---|---|
| neutrontal | 146 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 6,561 ± 0,007 ky
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1949 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 5.796% |
| 34Si | 1.3% |
| masstal | 241 |
|---|---|
| neutrontal | 147 |
| Relative Atomic Mass | |
| g-factor | −0,2712 ± 0,0056
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 14,329 ± 0,029 y
|
| Spinn | 5/2 |
| nuclear quadrupole moment | 6
|
| upptäcktsdatum | 1949 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| β− (β− decay) | 100% |
| α (α emission) | 0.00245% |
| SF (spontaneous fission) | 2.4% |
| masstal | 242 |
|---|---|
| neutrontal | 148 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 375 ± 2 ky
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1950 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) | 5.51% |
| masstal | 243 |
|---|---|
| neutrontal | 149 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 4,9553 ± 0,0025 h
|
| Spinn | 7/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | 1951 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| β− (β− decay) | 100% |
| masstal | 244 |
|---|---|
| neutrontal | 150 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 81,3 ± 0,3 My
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1954 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| α (α emission) | 99.877% |
| SF (spontaneous fission) | 0.123% |
| 2β− (double β− decay) | 7.3% |
| masstal | 245 |
|---|---|
| neutrontal | 151 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 10,5 ± 0,1 h
|
| Spinn | 9/2 |
| nuclear quadrupole moment | |
| upptäcktsdatum | 1955 |
| Paritet | - |
| decay mode | Intensitet |
|---|---|
| β− (β− decay) | 100% |
| masstal | 246 |
|---|---|
| neutrontal | 152 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 10,84 ± 0,02 d
|
| Spinn | 0 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1955 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| β− (β− decay) | 100% |
| masstal | 247 |
|---|---|
| neutrontal | 153 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioaktivitet | ☢️ Radioaktivt grundämne |
| Halveringstid | 2,27 ± 0,23 d
|
| Spinn | 1/2 |
| nuclear quadrupole moment | 0
|
| upptäcktsdatum | 1983 |
| Paritet | + |
| decay mode | Intensitet |
|---|---|
| β− (β− decay) | 100% |
| upptäckare eller uppfinnare | G.T.Seaborg, J.W.Kennedy, E.M.McMillan, A.C.Wohl |
|---|---|
| fyndplats | United States |
| upptäcktsdatum | 1940 |
| etymologi | Named for the planet Pluto. |
| uttal | ploo-TOE-ni-em (engelska) |
| Förekomst | |
|---|---|
| Abundance in Earth's crust | |
| natural abundance (världshav) | |
| natural abundance (människokropp) | 0 %
|
| natural abundance (meteoroid) | 0 %
|
| natural abundance (Solen) | 0 %
|
| Abundance in Universe | 0 %
|