Беркелий (Bk)
element with the atomic number of 97
| Atomic Number | 97 |
|---|---|
| Atomic Weight | 247 |
| mass number | 233 |
| Group | |
|---|---|
| Period | 7 |
| Block | f |
| Протон | 97 p+ |
|---|---|
| Нейтрон | 136 n0 |
| Электрон | 97 e- |
Physical Property
Chemical Property
| энергия | |
|---|---|
| proton affinity | |
| electron affinity | |
| ionization energy | 6,1978 eV/particle
|
| enthalpy of vaporization | |
| enthalpy of fusion | |
| standard enthalpy of formation | 310 kJ/mol
|
| Электрон | |
| electron shell | 2, 8, 18, 32, 27, 8, 2 |
 | |
| valence electron | 2 ⓘ |
 | |
| electron configuration | [Rn] 5f9 7s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f9 7s2 |
  | |
| oxidation number | 2, 3, 4, 5 |
| electronegativity | |
| Electrophilicity Index | |
| fundamental state of matter | |
| phase of matter | Solid |
| gaseous state of matter | |
| Boiling Point | |
| Melting Point | 1 259,15 K
|
| critical pressure | |
| critical temperature | |
| triple point | |
| appearance | |
| Түс – | Colorless
|
| appearance | silvery |
| 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 | |
| Магнетизм | |
| type | |
| magnetic susceptibility (Mass) | |
| magnetic susceptibility (Molar) | |
| magnetic susceptibility (Volume) | |
| magnetic ordering | |
| Curie temperature | |
| Néel temperature | |
| түзүм | |
| Crystal Structure | Simple Hexagonal () |
| lattice constant | |
| Lattice Angles | π/2, π/2, 2 π/3 |
| mechanical property | |
| hardness | |
| bulk modulus | |
| shear modulus | |
| Young's modulus | |
| Poisson's ratio | |
| speed of sound | |
| classification | |
| Category | Actinides, Actinides |
| CAS Group | |
| IUPAC Group | |
| Glawe Number | 41 |
| Mendeleev Number | 30 |
| Pettifor Number | 40 |
| Geochemical Class | |
| Литофиль элементтери | synthetic |
other
| Gas Basicity | |
|---|---|
| polarizability | |
| C6 Dispersion Coefficient | |
| allotrope | |
| Neutron cross section | 710
|
| Neutron Mass Absorption | |
| Кванттык сандар | 6H15/2 |
| space group | 194 (P63/mmc) |
Isotopes of Berkelium
| Stable Isotopes | 0 |
|---|---|
| Unstable Isotopes | 22 |
| Natural Isotopes | 0 |
233Bk
| mass number | 233 |
|---|---|
| neutron number | 136 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 40 ± 30 s
|
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 2015 |
| parity | - |
| decay mode | intensity |
|---|---|
| α (α emission) | 82% |
| β+ (β+ decay; β+ = ϵ + e+) |
234Bk
| mass number | 234 |
|---|---|
| neutron number | 137 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 20 ± 5 s
|
| Спин | 3 |
| nuclear quadrupole moment | |
| time of discovery or invention | 2003 |
| parity | - |
| decay mode | intensity |
|---|---|
| α (α emission) | 80% |
| β+ (β+ decay; β+ = ϵ + e+) | 20% |
235Bk
| mass number | 235 |
|---|---|
| neutron number | 138 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | |
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | |
| parity | - |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | |
| α (α emission) |
236Bk
| mass number | 236 |
|---|---|
| neutron number | 139 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 26 ± 10 s
|
| Спин | 4 |
| nuclear quadrupole moment | |
| time of discovery or invention | 2017 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) | |
| β+ SF (β+-delayed fission) | 0.04% |
237Bk
| mass number | 237 |
|---|---|
| neutron number | 140 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | |
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | |
| parity | - |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | |
| α (α emission) |
238Bk
| mass number | 238 |
|---|---|
| neutron number | 141 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 2,4 ± 0,08 m
|
| Спин | 1 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1994 |
| parity |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) | |
| β+ SF (β+-delayed fission) | 0.048% |
239Bk
| mass number | 239 |
|---|---|
| neutron number | 142 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | |
| Спин | 7/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1989 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) | 0.01% |
| SF (spontaneous fission) | 0.01% |
240Bk
| mass number | 240 |
|---|---|
| neutron number | 143 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 4,8 ± 0,8 m
|
| Спин | 7 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1980 |
| parity | - |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | |
| α (α emission) | |
| β+ SF (β+-delayed fission) | 0.002% |
241Bk
| mass number | 241 |
|---|---|
| neutron number | 144 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 4,6 ± 0,4 m
|
| Спин | 7/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 2003 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | |
| α (α emission) |
242Bk
| mass number | 242 |
|---|---|
| neutron number | 145 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 7 ± 1,3 m
|
| Спин | 3 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1972 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| β+ SF (β+-delayed fission) | 3% |
| α (α emission) |
243Bk
| mass number | 243 |
|---|---|
| neutron number | 146 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 4,6 ± 0,2 h
|
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1950 |
| parity | - |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) | 0.15% |
244Bk
| mass number | 244 |
|---|---|
| neutron number | 147 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 5,02 ± 0,03 h
|
| Спин | 4 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1972 |
| parity | - |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | |
| α (α emission) | 0.006% |
245Bk
| mass number | 245 |
|---|---|
| neutron number | 148 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 4,95 ± 0,03 d
|
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1951 |
| parity | - |
| decay mode | intensity |
|---|---|
| ϵ (electron capture) | 99.88% |
| α (α emission) | 0.12% |
246Bk
| mass number | 246 |
|---|---|
| neutron number | 149 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 1,8 ± 0,02 d
|
| Спин | 2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1954 |
| parity |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| α (α emission) |
247Bk
| mass number | 247 |
|---|---|
| neutron number | 150 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 1,38 ± 0,25 ky
|
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1965 |
| parity | - |
| decay mode | intensity |
|---|---|
| α (α emission) | 100% |
| SF (spontaneous fission) |
248Bk
| mass number | 248 |
|---|---|
| neutron number | 151 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | |
| Спин | 6 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1956 |
| parity | + |
| decay mode | intensity |
|---|---|
| α (α emission) | |
| ϵ (electron capture) |
249Bk
| mass number | 249 |
|---|---|
| neutron number | 152 |
| relative atomic mass | |
| g-factor | 0,57142857142857 ± 0,11428571428571
|
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 327,2 ± 0,3 d
|
| Спин | 7/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1954 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| α (α emission) | 0.00145% |
| SF (spontaneous fission) | 47% |
250Bk
| mass number | 250 |
|---|---|
| neutron number | 153 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 3,212 ± 0,005 h
|
| Спин | 2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1954 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
251Bk
| mass number | 251 |
|---|---|
| neutron number | 154 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 55,6 ± 1,1 m
|
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1967 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
252Bk
| mass number | 252 |
|---|---|
| neutron number | 155 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | 1,8 ± 0,5 m
|
| Спин | |
| nuclear quadrupole moment | |
| time of discovery or invention | 1988 |
| parity |
| decay mode | intensity |
|---|---|
| β− (β− decay) | |
| α (α emission) |
253Bk
| mass number | 253 |
|---|---|
| neutron number | 156 |
| relative atomic mass | |
| g-factor | |
| natural abundance | |
| Радиоактивдүүлүк | ☢️ Радиоактивдүү элементтер — |
| half-life | |
| Спин | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1991 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) |
тарых
| discoverer or inventor | G.T.Seaborg, S.G.Tompson, A.Ghiorso |
|---|---|
| location of discovery | United States |
| time of discovery or invention | 1949 |
| Этимология | Named after Berkeley, California the city of its discovery. |
| pronunciation | BURK-li-em (англисче) |
source
| Abundance | |
|---|---|
| Abundance in Earth's crust | |
| natural abundance (Океан) | |
| natural abundance (human body) | 0 %
|
| natural abundance (meteoroid) | 0 %
|
| natural abundance (Күн) | 0 %
|
| Abundance in Universe | 0 %
|
