Atomnummer | 94 |
---|---|
Atommassa | 244 |
masstal | 221 |
Grupp | |
---|---|
Period | 7 |
Block | f |
Protoner | 94 p+ |
---|---|
Neutroner | 127 n0 |
Electrons | 94 e- |
atomradie | 175 pm
|
---|---|
molvolym | |
kovalent radie | 172 pm
|
Metallic Radius | |
ionic radius | 100 pm
|
Crystal Radius | 114 pm
|
Van der Waalsradie |
243 pm
|
densitet | 19,7 g/cm³
|
energi | |
proton affinity | |
Elektronaffinitet | |
joniseringsenergi | 6,0258 eV/particle
|
ångbildningsvärme | 343,5 kJ/mol
|
smältvärme | 2,8 kJ/mol
|
Bildningsentalpi | 345 kJ/mol
|
Electrons | |
electron shell | 2, 8, 18, 32, 24, 8, 2 |
valenselektron | 2 |
elektronkonfiguration | [Rn] 5f6 7s2 |
oxidationstal | 2, 3, 4, 5, 6, 7, 8 |
elektronegativitet |
1.3
|
Electrophilicity | |
Phases | |
aggregationstillstånd | Fast |
Gas Phase | |
Kokpunkt | 3 501,15 K
|
Smältpunkt | 913,15 K
|
critical pressure | |
critical temperature | |
trippelpunkt | |
Visual | |
färg | Silver
|
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 | 0,67 MS/m
|
resistivitet | 0,0000015 m Ω
|
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 | |
Structure | |
Kristallstruktur | Enkelt monoklint (MCL) |
Gitterkonstant | |
Lattice Angles | π/2, 1.776571, π/2 |
mekanisk materialegenskap | |
hårdhet | |
Kompressibilitet | |
skjuvmodul | 43 GPa
|
Young's modulus | 96 GPa
|
Poissons konstant | 0,21
|
ljudhastighet | 2 260 m/s
|
klassificering | |
Kategori | Aktinider, Actinides |
CAS Group | |
IUPAC Group | |
Glawe Number | 38 |
Mendeleev Number | 24 |
Pettifor Number | 43 |
Geochemical Class | |
Goldschmidt classification | synthetic |
övrigt | |
Gas Basicity | |
Dipole Polarizability | |
C6 Dispersion Coefficient | |
Allotropes | |
Träffyta | 1,7
|
Neutron Mass Absorption | |
kvanttal | 7F0 |
rymdgrupp | 11 (P121/m1) |
Stabila isotoper | 0 |
---|---|
Instabila isotoper | 27 |
Radioactive Isotopes | 27 |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 221 |
g-factor | |
Halveringstid | |
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | % |
SF (spontaneous fission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 222 |
g-factor | 0
|
Halveringstid | |
Spinn | 0 |
nuclear quadrupole moment | 0
|
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | % |
SF (spontaneous fission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 223 |
g-factor | |
Halveringstid | |
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | % |
SF (spontaneous fission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 224 |
g-factor | 0
|
Halveringstid | |
Spinn | 0 |
nuclear quadrupole moment | 0
|
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | % |
SF (spontaneous fission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 225 |
g-factor | |
Halveringstid | |
Spinn | 7/2 |
nuclear quadrupole moment | |
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | % |
SF (spontaneous fission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 226 |
g-factor | 0
|
Halveringstid | |
Spinn | 0 |
nuclear quadrupole moment | 0
|
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | % |
SF (spontaneous fission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 227 |
g-factor | |
Halveringstid | |
Spinn | 5/2 |
nuclear quadrupole moment | |
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 228 |
g-factor | 0
|
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+) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 229 |
g-factor | |
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 230 |
g-factor | 0
|
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+) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 231 |
g-factor | |
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 232 |
g-factor | 0
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 233 |
g-factor | |
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 234 |
g-factor | 0
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 235 |
g-factor | |
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 236 |
g-factor | 0
|
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) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 237 |
g-factor | |
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 238 |
g-factor | 0
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 239 |
g-factor | 0,404 ± 0,008
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 240 |
g-factor | 0
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 241 |
g-factor | −0,2712 ± 0,0056
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 242 |
g-factor | 0
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 243 |
g-factor | |
Halveringstid | 4,9553 ± 0,0025 h
|
Spinn | 7/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1951 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 244 |
g-factor | 0
|
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% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 245 |
g-factor | |
Halveringstid | 10,5 ± 0,1 h
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1955 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 246 |
g-factor | 0
|
Halveringstid | 10,84 ± 0,02 d
|
Spinn | 0 |
nuclear quadrupole moment | 0
|
upptäcktsdatum | 1955 |
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 | |
Abundance in Oceans | |
Abundance in Human Body | 0 %
|
Abundance in Meteor | 0 %
|
Abundance in Sun | 0 %
|
Abundance in Universe | 0 %
|