Berkelij[um]

Berkelij[um] (Bk)

hemijski element sa simbolom Bk i atomskim brojem 97
Atomic Number97
Atomic Weight247
Maseni broj233
Group
Period7
Blockf
Proton97 p+
Neutron136 n0
Elektron97 e-
Animated Bohrov model atoma of Bk (Berkelij[um])

Physical Property

Atomski Radijus
Molarni volumen
covalent radius
168 pm
Metallic Radius
Ionski radijus
96 pm
Crystal Radius
110 pm
Van der Waalsov radijus
244 pm
gustoća
14,78 g/cm³

Chemical Property

energija
proton affinity
electron affinity
ionization energy
ionization energy of Bk (Berkelij[um])
Toplota isparavanja
toplota topljenja
standard enthalpy of formation
310 kJ/mol
Elektron
electron shell2, 8, 18, 32, 27, 8, 2
Bohrov model atoma: Bk (Berkelij[um])
Valentni elektron2
Lewis structure: Bk (Berkelij[um])
electron configuration[Rn] 5f9 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f9 7s2
Enhanced Bohrov model atoma of Bk (Berkelij[um])
Orbital Diagram of Bk (Berkelij[um])
oksidacijsko stanje2, 3, 4, 5
Elektronegativnost
Electrophilicity Index
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
Melting Point
1.259,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Colorless
appearancesilvery
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Specifična električna provodljivost
electrical resistivity
Superprovodljivost
Magnetizam
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureSimple Hexagonal ()
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
Tvrdoća
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Brzina zvuka
klasifikacija
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number41
Mendeleev Number30
Pettifor Number40
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
125 ± 25 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
710
Neutron Mass Absorption
Kvantni brojevi6H15/2
space group194 (P63/mmc)

Isotopes of Berkelium

Stable Isotopes0
Unstable Isotopes22
Natural Isotopes0

233Bk

Maseni broj233
broj neutrona136
relative atomic mass
233,056652 ± 0,00025 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
40 ± 30 s
spin3/2
nuclear quadrupole moment
datum otkrića2015
parity-

decay modeintensity
α (α emission)82%
β+ (β+ decay; β+ = ϵ + e+)

234Bk

Maseni broj234
broj neutrona137
relative atomic mass
234,057322 ± 0,000164 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20 ± 5 s
spin3
nuclear quadrupole moment
datum otkrića2003
parity-

decay modeintensity
α (α emission)80%
β+ (β+ decay; β+ = ϵ + e+)20%

235Bk

Maseni broj235
broj neutrona138
relative atomic mass
235,056651 ± 0,00043 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića
parity-

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

236Bk

Maseni broj236
broj neutrona139
relative atomic mass
236,057479 ± 0,000387 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
26 ± 10 s
spin4
nuclear quadrupole moment
datum otkrića2017
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)
β+ SF (β+-delayed fission)0.04%

237Bk

Maseni broj237
broj neutrona140
relative atomic mass
237,057123 ± 0,000247 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića
parity-

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

238Bk

Maseni broj238
broj neutrona141
relative atomic mass
238,058204 ± 0,000275 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,4 ± 0,08 m
spin1
nuclear quadrupole moment
datum otkrića1994
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)
β+ SF (β+-delayed fission)0.048%

239Bk

Maseni broj239
broj neutrona142
relative atomic mass
239,058239 ± 0,000222 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin7/2
nuclear quadrupole moment
datum otkrića1989
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.01%
SF (spontaneous fission)0.01%

240Bk

Maseni broj240
broj neutrona143
relative atomic mass
240,059758 ± 0,000161 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,8 ± 0,8 m
spin7
nuclear quadrupole moment
datum otkrića1980
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)
β+ SF (β+-delayed fission)0.002%

241Bk

Maseni broj241
broj neutrona144
relative atomic mass
241,060098 ± 0,000178 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,6 ± 0,4 m
spin7/2
nuclear quadrupole moment
datum otkrića2003
parity+

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

242Bk

Maseni broj242
broj neutrona145
relative atomic mass
242,061999 ± 0,000144 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7 ± 1,3 m
spin3
nuclear quadrupole moment
datum otkrića1972
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ SF (β+-delayed fission)3%
α (α emission)

243Bk

Maseni broj243
broj neutrona146
relative atomic mass
243,063005905 ± 0,000004856 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,6 ± 0,2 h
spin3/2
nuclear quadrupole moment
datum otkrića1950
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.15%

244Bk

Maseni broj244
broj neutrona147
relative atomic mass
244,065178969 ± 0,000015457 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,02 ± 0,03 h
spin4
nuclear quadrupole moment
datum otkrića1972
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)0.006%

245Bk

Maseni broj245
broj neutrona148
relative atomic mass
245,066359814 ± 0,000001923 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,95 ± 0,03 d
spin3/2
nuclear quadrupole moment
datum otkrića1951
parity-

decay modeintensity
ϵ (electron capture)99.88%
α (α emission)0.12%

246Bk

Maseni broj246
broj neutrona149
relative atomic mass
246,0686713 ± 0,000064433 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,8 ± 0,02 d
spin2
nuclear quadrupole moment
datum otkrića1954
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)

247Bk

Maseni broj247
broj neutrona150
relative atomic mass
247,070305889 ± 0,00000557 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,38 ± 0,25 ky
spin3/2
nuclear quadrupole moment
datum otkrića1965
parity-

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

248Bk

Maseni broj248
broj neutrona151
relative atomic mass
248,073141689 ± 0,000053739 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin6
nuclear quadrupole moment
datum otkrića1956
parity+

decay modeintensity
α (α emission)
ϵ (electron capture)

249Bk

Maseni broj249
broj neutrona152
relative atomic mass
249,074983118 ± 0,000001339 Da
g-factor
0,57142857142857 ± 0,11428571428571
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
327,2 ± 0,3 d
spin7/2
nuclear quadrupole moment
datum otkrića1954
parity+

decay modeintensity
β (β decay)100%
α (α emission)0.00145%
SF (spontaneous fission)47%

250Bk

Maseni broj250
broj neutrona153
relative atomic mass
250,078317195 ± 0,00000311 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,212 ± 0,005 h
spin2
nuclear quadrupole moment
datum otkrića1954
parity-

decay modeintensity
β (β decay)100%

251Bk

Maseni broj251
broj neutrona154
relative atomic mass
251,080760555 ± 0,000011523 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
55,6 ± 1,1 m
spin3/2
nuclear quadrupole moment
datum otkrića1967
parity-

decay modeintensity
β (β decay)100%

252Bk

Maseni broj252
broj neutrona155
relative atomic mass
252,08431 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,8 ± 0,5 m
spin
nuclear quadrupole moment
datum otkrića1988
parity

decay modeintensity
β (β decay)
α (α emission)

253Bk

Maseni broj253
broj neutrona156
relative atomic mass
253,08688 ± 0,000385 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića1991
parity-

decay modeintensity
β (β decay)

254Bk

Maseni broj254
broj neutrona157
relative atomic mass
254,0906 ± 0,00032 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića
parity

decay modeintensity
β (β decay)
Berkelium metal

historija

otkrivač ili izumiteljG.T.Seaborg, S.G.Tompson, A.Ghiorso
mjesto otkrićaUnited States
datum otkrića1949
EtimologijaNamed after Berkeley, California the city of its discovery.
pronunciationBURK-li-em (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
natural abundance (ljudsko tijelo)
0 %
natural abundance (Meteoroidi)
0 %
natural abundance (Sunce)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants