Rutherfordium

Rutherfordium (Rf)

grundämne
Atomnummer104
Atommassa267
masstal253
Grupp4
Period7
Blockd
Protoner104 p+
Neutroner149 n0
Electrons104 e-
Animated Bohrs atommodell of Rf (Rutherfordium)

Egenskaper

fysisk egenskap
atomradie
molvolym
kovalent radie
157 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waalsradie
densitet
23,3 g/cm³
energi
proton affinity
Elektronaffinitet
joniseringsenergi
6,01 eV/particle
joniseringsenergi of Rf (Rutherfordium)
ångbildningsvärme
smältvärme
Bildningsentalpi
Electrons
electron shell2, 8, 18, 32, 32, 10, 2
Bohrs atommodell: Rf (Rutherfordium)
valenselektron2
elektronkonfiguration[Rn] 5f14 6d2 7s2
Enhanced Bohrs atommodell of Rf (Rutherfordium)
Orbital Diagram of Rf (Rutherfordium)
oxidationstal4
elektronegativitet
Electrophilicity
Phases
aggregationstillståndFast
Gas Phase
Kokpunkt
Smältpunkt
critical pressure
critical temperature
trippelpunkt
Visual
färg
Färglös
appearance
Brytningsindex
materialegenskap
Värmeledningsförmåga
termisk expansion
molar heat capacity
Specifik värmekapacitet
heat capacity ratio
electrical properties
type
elektrisk konduktivitet
resistivitet
supraledare
magnetism
type
magnetisk susceptibilitet (Mass)
magnetisk susceptibilitet (Molar)
magnetisk susceptibilitet (Volume)
magnetic ordering
Curiepunkten
Néel temperature
Structure
Kristallstruktur ()
Gitterkonstant
Lattice Angles
mekanisk materialegenskap
hårdhet
Kompressibilitet
skjuvmodul
Young's modulus
Poissons konstant
ljudhastighet
klassificering
KategoriÖvergångsmetaller, Transition metals
CAS GroupIVA
IUPAC GroupIVB
Glawe Number
Mendeleev Number46
Pettifor Number
Geochemical Class
Goldschmidt classificationsynthetic
övrigt
Gas Basicity
Dipole Polarizability
112 ± 10 a₀
C6 Dispersion Coefficient
Allotropes
Träffyta
Neutron Mass Absorption
kvanttal3F2
rymdgrupp ()

Rutherfordiumisotoper

Stabila isotoper0
Instabila isotoper16
Radioactive Isotopes16

253Rf

natural abundanceRadioactive ☢️
relative atomic mass
253,100528 ± 0,00044 Da
masstal253
g-factor
Halveringstid
13 ± 5 ms
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1997
Paritet
253Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)100%
α (α emission)%

254Rf

natural abundanceRadioactive ☢️
relative atomic mass
254,100055 ± 0,000304 Da
masstal254
g-factor
0
Halveringstid
22,9 ± 1 us
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1997
Paritet+
254Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)100%
α (α emission)1.5%

255Rf

natural abundanceRadioactive ☢️
relative atomic mass
255,101267 ± 0,000194 Da
masstal255
g-factor
Halveringstid
1,63 ± 0,05 s
Spinn9/2
nuclear quadrupole moment
upptäcktsdatum1975
Paritet-
255Rf Decay Modes
decay modeIntensitet
α (α emission)52.8%
SF (spontaneous fission)47.2%
β+ (β+ decay; β+ = ϵ + e+)6%

256Rf

natural abundanceRadioactive ☢️
relative atomic mass
256,101151464 ± 0,00001916 Da
masstal256
g-factor
0
Halveringstid
6,6 ± 0,05 ms
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1975
Paritet+
256Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)99.69%
α (α emission)0.31%

257Rf

natural abundanceRadioactive ☢️
relative atomic mass
257,102916796 ± 0,000011612 Da
masstal257
g-factor
Halveringstid
5 ± 0,2 s
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum1969
Paritet+
257Rf Decay Modes
decay modeIntensitet
α (α emission)89.3%
β+ (β+ decay; β+ = ϵ + e+)9.4%
SF (spontaneous fission)1.3%

258Rf

natural abundanceRadioactive ☢️
relative atomic mass
258,103429895 ± 0,000017288 Da
masstal258
g-factor
0
Halveringstid
12,5 ± 0,5 ms
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1969
Paritet+
258Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)95.1%
α (α emission)4.9%

259Rf

natural abundanceRadioactive ☢️
relative atomic mass
259,105601 ± 0,000078 Da
masstal259
g-factor
Halveringstid
2,63 ± 0,26 s
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1969
Paritet+
259Rf Decay Modes
decay modeIntensitet
α (α emission)85%
β+ (β+ decay; β+ = ϵ + e+)15%
SF (spontaneous fission)3%

260Rf

natural abundanceRadioactive ☢️
relative atomic mass
260,10644 ± 0,000215 Da
masstal260
g-factor
0
Halveringstid
21 ± 1 ms
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1985
Paritet+
260Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)100%
α (α emission)%
β+ (β+ decay; β+ = ϵ + e+)%

261Rf

natural abundanceRadioactive ☢️
relative atomic mass
261,108769591 ± 0,000070492 Da
masstal261
g-factor
Halveringstid
2,1 ± 0,2 s
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1970
Paritet+
261Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)82%
α (α emission)18%

262Rf

natural abundanceRadioactive ☢️
relative atomic mass
262,109923 ± 0,00024 Da
masstal262
g-factor
0
Halveringstid
250 ± 100 ms
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum1985
Paritet+
262Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)100%

263Rf

natural abundanceRadioactive ☢️
relative atomic mass
263,112461 ± 0,000164 Da
masstal263
g-factor
Halveringstid
11 ± 3 m
Spinn
nuclear quadrupole moment
upptäcktsdatum2003
Paritet
263Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)100%
α (α emission)%

264Rf

natural abundanceRadioactive ☢️
relative atomic mass
264,113876 ± 0,000387 Da
masstal264
g-factor
0
Halveringstid
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum
Paritet+
264Rf Decay Modes
decay modeIntensitet
α (α emission)%

265Rf

natural abundanceRadioactive ☢️
relative atomic mass
265,116683 ± 0,000387 Da
masstal265
g-factor
Halveringstid
1,6 ± 0,6 m
Spinn9/2
nuclear quadrupole moment
upptäcktsdatum2010
Paritet+
265Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)100%
α (α emission)%

266Rf

natural abundanceRadioactive ☢️
relative atomic mass
266,118236 ± 0,000443 Da
masstal266
g-factor
0
Halveringstid
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum
Paritet+
266Rf Decay Modes
decay modeIntensitet
α (α emission)%
SF (spontaneous fission)%

267Rf

natural abundanceRadioactive ☢️
relative atomic mass
267,121787 ± 0,000617 Da
masstal267
g-factor
Halveringstid
2,5 ± 1,5 h
Spinn
nuclear quadrupole moment
upptäcktsdatum2004
Paritet
267Rf Decay Modes
decay modeIntensitet
SF (spontaneous fission)100%

268Rf

natural abundanceRadioactive ☢️
relative atomic mass
268,123968 ± 0,000711 Da
masstal268
g-factor
0
Halveringstid
Spinn0
nuclear quadrupole moment
0
upptäcktsdatum
Paritet+
268Rf Decay Modes
decay modeIntensitet
α (α emission)%
SF (spontaneous fission)%
Electron shell 104 Rutherfordium

historia

upptäckare eller uppfinnareA. Ghiorso, et al
fyndplatsUnited States
upptäcktsdatum1969
etymologiNamed in honor of Ernest Rutherford
uttalruth-er-FORD-i-em (engelska)

Sources

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 %

Nuclear Screening Constants

Rutherfordium on ChemicalAid