Atomnummer | 91 |
---|---|
Atommassa | 231.03588 |
masstal | 231 |
Grupp | |
---|---|
Period | 7 |
Block | f |
Protoner | 91 p+ |
---|---|
Neutroner | 140 n0 |
Electrons | 91 e- |
atomradie | 180 pm
|
---|---|
molvolym | 15 cm³/mol
|
kovalent radie | 169 pm
|
Metallic Radius | |
ionic radius | 104 pm
|
Crystal Radius | 118 pm
|
Van der Waalsradie |
243 pm
|
densitet | 15,4 g/cm³
|
energi | |
proton affinity | |
Elektronaffinitet | |
joniseringsenergi | 5,89 eV/particle
|
ångbildningsvärme | 481,2 kJ/mol
|
smältvärme | 16,7 kJ/mol
|
Bildningsentalpi | 563 kJ/mol
|
Electrons | |
electron shell | 2, 8, 18, 32, 20, 9, 2 |
valenselektron | 2 |
elektronkonfiguration | [Rn] 5f2 6d1 7s2 |
oxidationstal | 2, 3, 4, 5 |
elektronegativitet |
1.5
|
Electrophilicity | |
Phases | |
aggregationstillstånd | Fast |
Gas Phase | |
Kokpunkt | |
Smältpunkt | 1 845,15 K
|
critical pressure | |
critical temperature | |
trippelpunkt | |
Visual | |
färg | Silver
|
appearance | bright, silvery metallic luster |
Brytningsindex | |
materialegenskap | |
Värmeledningsförmåga | |
termisk expansion | |
molar heat capacity | |
Specifik värmekapacitet | |
heat capacity ratio | |
electrical properties | |
type | Conductor |
elektrisk konduktivitet | 5,6 MS/m
|
resistivitet | 0,00000018 m Ω
|
supraledare | 1,41 K
|
magnetism | |
type | paramagnetic |
magnetisk susceptibilitet (Mass) | 0,0000000325 m³/Kg
|
magnetisk susceptibilitet (Molar) | 0,000000007509 m³/mol
|
magnetisk susceptibilitet (Volume) | 0,0004995
|
magnetic ordering | |
Curiepunkten | |
Néel temperature | |
Structure | |
Kristallstruktur | Rymdcentrerat tetragonalt (TET) |
Gitterkonstant | 3,92 Å
|
Lattice Angles | π/2, π/2, π/2 |
mekanisk materialegenskap | |
hårdhet | |
Kompressibilitet | |
skjuvmodul | |
Young's modulus | |
Poissons konstant | |
ljudhastighet | |
klassificering | |
Kategori | Aktinider, Actinides |
CAS Group | |
IUPAC Group | |
Glawe Number | 35 |
Mendeleev Number | 18 |
Pettifor Number | 46 |
Geochemical Class | U/Th decay series |
Goldschmidt classification | litophile |
övrigt | |
Gas Basicity | |
Dipole Polarizability | |
C6 Dispersion Coefficient | |
Allotropes | |
Träffyta | 200
|
Neutron Mass Absorption | |
kvanttal | 4K11/2 |
rymdgrupp | 139 (I4/mmm) |
Stabila isotoper | 1 |
---|---|
Instabila isotoper | 30 |
Radioactive Isotopes | 31 |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 211 |
g-factor | |
Halveringstid | 6 ± 3 ms
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 2006 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) | % |
p (proton emission) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 212 |
g-factor | |
Halveringstid | 5,8 ± 1,9 ms
|
Spinn | 3 |
nuclear quadrupole moment | |
upptäcktsdatum | 1997 |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 213 |
g-factor | |
Halveringstid | 7,4 ± 2,4 ms
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1995 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 214 |
g-factor | |
Halveringstid | 17 ± 3 ms
|
Spinn | 7 |
nuclear quadrupole moment | |
upptäcktsdatum | 1995 |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 215 |
g-factor | |
Halveringstid | 14 ± 2 ms
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1979 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 216 |
g-factor | |
Halveringstid | 105 ± 12 ms
|
Spinn | 5 |
nuclear quadrupole moment | |
upptäcktsdatum | 1972 |
Paritet | + |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 217 |
g-factor | |
Halveringstid | 3,8 ± 0,2 ms
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1968 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
β− (β− decay) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 218 |
g-factor | |
Halveringstid | 108 ± 5 us
|
Spinn | 8 |
nuclear quadrupole moment | |
upptäcktsdatum | 1979 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 219 |
g-factor | |
Halveringstid | 56 ± 9 ns
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 2005 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 220 |
g-factor | |
Halveringstid | 0,85 ± 0,06 us
|
Spinn | 1 |
nuclear quadrupole moment | |
upptäcktsdatum | 2005 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 221 |
g-factor | |
Halveringstid | 5,9 ± 1,7 us
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1983 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 222 |
g-factor | |
Halveringstid | 3,8 ± 0,2 ms
|
Spinn | 1 |
nuclear quadrupole moment | |
upptäcktsdatum | 1970 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 223 |
g-factor | |
Halveringstid | 5,3 ± 0,3 ms
|
Spinn | 9/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1970 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 224 |
g-factor | |
Halveringstid | 844 ± 19 ms
|
Spinn | 5 |
nuclear quadrupole moment | |
upptäcktsdatum | 1958 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 225 |
g-factor | |
Halveringstid | 1,71 ± 0,1 s
|
Spinn | 5/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1958 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 226 |
g-factor | |
Halveringstid | 1,8 ± 0,2 m
|
Spinn | 1 |
nuclear quadrupole moment | |
upptäcktsdatum | 1949 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 74% |
β+ (β+ decay; β+ = ϵ + e+) | 26% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 227 |
g-factor | |
Halveringstid | 38,3 ± 0,3 m
|
Spinn | 5/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1948 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 85% |
ϵ (electron capture) | 15% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 228 |
g-factor | 1,1666666666667 ± 0,16666666666667
|
Halveringstid | 22 ± 1 h
|
Spinn | 3 |
nuclear quadrupole moment | |
upptäcktsdatum | 1948 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 98.15% |
α (α emission) | 1.85% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 229 |
g-factor | |
Halveringstid | 1,55 ± 0,04 d
|
Spinn | 5/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1949 |
Paritet | + |
decay mode | Intensitet |
---|---|
ϵ (electron capture) | 99.51% |
α (α emission) | 0.49% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 230 |
g-factor | 1 ± 0,1
|
Halveringstid | 17,4 ± 0,5 d
|
Spinn | 2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1948 |
Paritet | - |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 92.2% |
β− (β− decay) | 7.8% |
α (α emission) | 0.0032% |
natural abundance | Radioactive ☢️ 100
|
---|---|
relative atomic mass | |
masstal | 231 |
g-factor | 1,3266666666667 ± 0,013333333333333
|
Halveringstid | 32,65 ± 0,2 ky
|
Spinn | 3/2 |
nuclear quadrupole moment | −1,72 ± 0,05
|
upptäcktsdatum | 1918 |
Paritet | - |
decay mode | Intensitet |
---|---|
α (α emission) | 100% |
SF (spontaneous fission) | 3% |
24Ne (heavy cluster emission) | 13.4% |
23F | 9.9% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 232 |
g-factor | |
Halveringstid | 1,32 ± 0,02 d
|
Spinn | 2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1949 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
ϵ (electron capture) | % |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 233 |
g-factor | 2,6666666666667 ± 0,46666666666667
|
Halveringstid | 26,975 ± 0,013 d
|
Spinn | 3/2 |
nuclear quadrupole moment | −3 ± 0,4
|
upptäcktsdatum | 1938 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 234 |
g-factor | |
Halveringstid | 6,7 ± 0,05 h
|
Spinn | 4 |
nuclear quadrupole moment | |
upptäcktsdatum | 1913 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 235 |
g-factor | |
Halveringstid | 24,4 ± 0,2 m
|
Spinn | 3/2 |
nuclear quadrupole moment | |
upptäcktsdatum | 1950 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 236 |
g-factor | |
Halveringstid | 9,1 ± 0,1 m
|
Spinn | 1 |
nuclear quadrupole moment | |
upptäcktsdatum | 1963 |
Paritet |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− SF (β−-delayed fission) | 6% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 237 |
g-factor | |
Halveringstid | 8,7 ± 0,2 m
|
Spinn | 1/2 |
nuclear quadrupole moment | 0
|
upptäcktsdatum | 1954 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 238 |
g-factor | |
Halveringstid | 2,28 ± 0,09 m
|
Spinn | 3 |
nuclear quadrupole moment | |
upptäcktsdatum | 1968 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− SF (β−-delayed fission) | 2.6% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 239 |
g-factor | |
Halveringstid | 1,8 ± 0,5 h
|
Spinn | 1/2 |
nuclear quadrupole moment | 0
|
upptäcktsdatum | 1995 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
natural abundance | Radioactive ☢️ |
---|---|
relative atomic mass | |
masstal | 240 |
g-factor | |
Halveringstid | |
Spinn | 3 |
nuclear quadrupole moment | |
upptäcktsdatum | |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | % |
upptäckare eller uppfinnare | Fredrich Soddy, John Cranston, Otto Hahn, Lise Meitner |
---|---|
fyndplats | England/France |
upptäcktsdatum | 1917 |
etymologi | Greek: proto and actinium (parent of actinium); it forms actinium when it radioactively decays. |
uttal | PRO-tak-tin-eh-em (engelska) |