Kalifornij

Kalifornij (Cf)

chemical element with the atomic number of 98
Atomski broj98
Relativna atomska masa251
Maseni broj237
Skupina
Perioda7
Blokf
proton98 p+
neutron139 n0
elektron98 e-
Animated Bohrov model atoma of Cf (Kalifornij)

Physical Property

Atomski Radijus
Molni volumen
Kovalentni Radijus
Metallic Radius
Ionski radijus
Crystal Radius
Van der Waals radius
gustoća

Kemijsko Svojstvo

energija
proton affinity
Elektronski afinitet
ionization energy
ionization energy of Cf (Kalifornij)
Toplina isparivanja
toplina taljenja
standard enthalpy of formation
elektron
Elektronska ljuska2, 8, 18, 32, 28, 8, 2
Bohrov model atoma: Cf (Kalifornij)
valence electron2
Lewis structure: Cf (Kalifornij)
electron configuration[Rn] 5f10 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f10 7s2
Enhanced Bohrov model atoma of Cf (Kalifornij)
Orbital Diagram of Cf (Kalifornij)
Oksidacijski broj2, 3, 4, 5
Elektronegativnost
Electrophilicity Index
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
Talište
critical pressure
critical temperature
Trojna točka
appearance
boja
Bezbojan
appearancesilvery
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
molar heat capacity
Specifični toplinski kapacitet
heat capacity ratio
electrical properties
type
electrical conductivity
Električna otpornost i provodnost
Supravodljivost
Magnetizam
type
Magnetna susceptibilnost (Mass)
Magnetna susceptibilnost (Molar)
Magnetna susceptibilnost (Volume)
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna strukturaJednostavna heksagonska ()
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
Tvrdoća
bulk modulus
shear modulus
Youngov modul elastičnosti
Poissonov omjer
brzina zvuka
classification
KategorijaAktinoidi, Actinides
CAS Group
IUPAC Group
Glawe Number42
Mendeleev Number32
Pettifor Number39
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Nuklearni udarni presjek
2.900
Neutron Mass Absorption
Kvantni brojevi5I8
space group194 (P63/mmc)

Isotopes of Californium

Stabilni izotopi0
Nestabilni izotopi20
Natural Isotopes0

237Cf

Maseni broj237
neutron number139
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
0,8 ± 0,2 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1995
Parnost+

decay modeintensity
α (α emission)70%
SF (spontaneous fission)30%
β+ (β+ decay; β+ = ϵ + e+)

238Cf

Maseni broj238
neutron number140
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,1 ± 1,3 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1995
Parnost+

decay modeintensity
SF (spontaneous fission)97.5%
α (α emission)2.5%

239Cf

Maseni broj239
neutron number141
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
28 ± 2 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1981
Parnost+

decay modeintensity
α (α emission)65%
β+ (β+ decay; β+ = ϵ + e+)

240Cf

Maseni broj240
neutron number142
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
40,3 ± 0,9 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1970
Parnost+

decay modeintensity
α (α emission)98.5%
SF (spontaneous fission)1.5%
β+ (β+ decay; β+ = ϵ + e+)

241Cf

Maseni broj241
neutron number143
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,35 ± 0,18 m
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1970
Parnost-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)15%

242Cf

Maseni broj242
neutron number144
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,49 ± 0,15 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1967
Parnost+

decay modeintensity
α (α emission)61%
β+ (β+ decay; β+ = ϵ + e+)39%
SF (spontaneous fission)0.014%

243Cf

Maseni broj243
neutron number145
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,8 ± 0,3 m
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1967
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)86%
α (α emission)14%

244Cf

Maseni broj244
neutron number146
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,5 ± 0,5 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1956
Parnost+

decay modeintensity
α (α emission)75%
ϵ (electron capture)25%

245Cf

Maseni broj245
neutron number147
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
45 ± 1,5 m
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1956
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)64.7%
α (α emission)35.3%

246Cf

Maseni broj246
neutron number148
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
35,7 ± 0,5 h
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1951
Parnost+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)2.4%
ϵ (electron capture)

247Cf

Maseni broj247
neutron number149
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,11 ± 0,03 h
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1954
Parnost+

decay modeintensity
ϵ (electron capture)99.965%
α (α emission)0.035%

248Cf

Maseni broj248
neutron number150
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
333,5 ± 2,8 d
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1954
Parnost+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)0.0029%

249Cf

Maseni broj249
neutron number151
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
351 ± 2 y
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1954
Parnost-

decay modeintensity
α (α emission)100%
SF (spontaneous fission)5%

250Cf

Maseni broj250
neutron number152
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,08 ± 0,09 y
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1954
Parnost+

decay modeintensity
α (α emission)99.923%
SF (spontaneous fission)0.077%

251Cf

Maseni broj251
neutron number153
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
898 ± 44 y
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1954
Parnost+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)

252Cf

Maseni broj252
neutron number154
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,645 ± 0,008 y
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1954
Parnost+

decay modeintensity
α (α emission)96.8972%
SF (spontaneous fission)3.1028%

253Cf

Maseni broj253
neutron number155
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,81 ± 0,08 d
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1954
Parnost+

decay modeintensity
β (β decay)99.69%
α (α emission)0.31%

254Cf

Maseni broj254
neutron number156
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
60,5 ± 0,2 d
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1955
Parnost+

decay modeintensity
SF (spontaneous fission)99.69%
α (α emission)0.31%
(double β decay)

255Cf

Maseni broj255
neutron number157
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
85 ± 18 m
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1981
Parnost+

decay modeintensity
β (β decay)100%
SF (spontaneous fission)
α (α emission)

256Cf

Maseni broj256
neutron number158
Relativna Atomska Masa
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,3 ± 1,2 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1980
Parnost+

decay modeintensity
SF (spontaneous fission)100%
α (α emission)
(double β decay)
Californium

povijest

otkrio/izumioG.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr.
location of discoveryUnited States
vrijeme otkrića ili izuma1950
EtimologijaNamed after the state and University of California.
pronunciationkal-eh-FOR-ni-em (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
natural abundance (ocean)
natural abundance (tijelo)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Sunce)
0 %
Zastupljenost u svemiru
0 %

Nuclear Screening Constants