Kaliforniyûm

Kaliforniyûm (Cf)

chemical element with the atomic number of 98
Atomic Number98
Atomic Weight251
Hejmara baristeyî237
Group
Period7
Blockf
Proton98 p+
Notron139 n0
Kareva98 e-
Animated Bohr model of Cf (Kaliforniyûm)

Physical Property

Atomic Radius
molar volume
Covalent Radius
168 pm
Metallic Radius
ionic radius
95 pm
Crystal Radius
109 pm
Van der Waals radius
245 pm
density
15,1 g/cm³

Chemical Property

wize
proton affinity
electron affinity
ionization energy
ionization energy of Cf (Kaliforniyûm)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
196 kJ/mol
Kareva
electron shell2, 8, 18, 32, 28, 8, 2
Bohr model: Cf (Kaliforniyûm)
valence electron2
Lewis structure: Cf (Kaliforniyûm)
electron configuration[Rn] 5f10 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f10 7s2
Enhanced Bohr model of Cf (Kaliforniyûm)
Orbital Diagram of Cf (Kaliforniyûm)
oxidation number2, 3, 4, 5
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
1.173,15 K
critical pressure
critical temperature
triple point
appearance
color
Colorless
appearancesilvery
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureSimple Hexagonal ()
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Leza dengê
classification
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number42
Mendeleev Number32
Pettifor Number39
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
122 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
2.900
Neutron Mass Absorption
quantum number5I8
space group194 (P63/mmc)

Isotopes of Californium

Stable Isotopes0
Unstable Isotopes20
Natural Isotopes0

237Cf

Hejmara baristeyî237
neutron number139
Giraniya atomê
237,062199272 ± 0,000104506 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
0,8 ± 0,2 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1995
parity+

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

238Cf

Hejmara baristeyî238
neutron number140
Giraniya atomê
238,06149 ± 0,00032 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
21,1 ± 1,3 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1995
parity+

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

239Cf

Hejmara baristeyî239
neutron number141
Giraniya atomê
239,062482 ± 0,000129 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
28 ± 2 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1981
parity+

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

240Cf

Hejmara baristeyî240
neutron number142
Giraniya atomê
240,062253447 ± 0,00001936 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
40,3 ± 0,9 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1970
parity+

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

241Cf

Hejmara baristeyî241
neutron number143
Giraniya atomê
241,06369 ± 0,00018 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,35 ± 0,18 m
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity-

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

242Cf

Hejmara baristeyî242
neutron number144
Giraniya atomê
242,063754544 ± 0,00001384 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3,49 ± 0,15 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

243Cf

Hejmara baristeyî243
neutron number145
Giraniya atomê
243,065475 ± 0,000194 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10,8 ± 0,3 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

244Cf

Hejmara baristeyî244
neutron number146
Giraniya atomê
244,065999447 ± 0,000002809 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
19,5 ± 0,5 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1956
parity+

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

245Cf

Hejmara baristeyî245
neutron number147
Giraniya atomê
245,068046755 ± 0,000002606 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
45 ± 1,5 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1956
parity+

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

246Cf

Hejmara baristeyî246
neutron number148
Giraniya atomê
246,068803685 ± 0,000001625 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
35,7 ± 0,5 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1951
parity+

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

247Cf

Hejmara baristeyî247
neutron number149
Giraniya atomê
247,070971348 ± 0,00001538 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,11 ± 0,03 h
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1954
parity+

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

248Cf

Hejmara baristeyî248
neutron number150
Giraniya atomê
248,072182905 ± 0,000005497 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
333,5 ± 2,8 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1954
parity+

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

249Cf

Hejmara baristeyî249
neutron number151
Giraniya atomê
249,074850428 ± 0,000001269 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
351 ± 2 y
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1954
parity-

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

250Cf

Hejmara baristeyî250
neutron number152
Giraniya atomê
250,076404494 ± 0,00000165 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
13,08 ± 0,09 y
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1954
parity+

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

251Cf

Hejmara baristeyî251
neutron number153
Giraniya atomê
251,079587171 ± 0,000004187 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
898 ± 44 y
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1954
parity+

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

252Cf

Hejmara baristeyî252
neutron number154
Giraniya atomê
252,081626507 ± 0,000002531 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,645 ± 0,008 y
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1954
parity+

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

253Cf

Hejmara baristeyî253
neutron number155
Giraniya atomê
253,085133723 ± 0,00000457 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
17,81 ± 0,08 d
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1954
parity+

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

254Cf

Hejmara baristeyî254
neutron number156
Giraniya atomê
254,087323575 ± 0,000012304 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
60,5 ± 0,2 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1955
parity+

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

255Cf

Hejmara baristeyî255
neutron number157
Giraniya atomê
255,091046 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
85 ± 18 m
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1981
parity+

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

256Cf

Hejmara baristeyî256
neutron number158
Giraniya atomê
256,093442 ± 0,000338 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
12,3 ± 1,2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1980
parity+

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

dîrok

kaşîf an îcadkerG.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr.
location of discoveryUnited States
dema îcadkirinê yan keşfê1950
BêjenasîNamed after the state and University of California.
pronunciationkal-eh-FOR-ni-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
natural abundance (Okyanûs)
natural abundance (human body)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Roj)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants