Berkelium - 97Bk: the essentials
Berkelium atoms have 97 electrons and the shell structure is 188.8.131.52.27.8.2. The ground state electronic configuration of neutral berkelium is [Rn].5f9.7s2 and the term symbol of berkelium is 6H15/2.
Berkelium is a radioactive rare earth metal, named after the University of California at Berkeley (USA). Apparently, berkelium tends to accumulate in the skeletal system. It is of no commercial importance and only a few of its compounds are known.
Berkelium: physical properties
- Density of solid: 14780 kg m-3
- Molar volume: 16.84 cm3
- Thermal conductivity: 10 (estimate) W m‑1 K‑1
Berkelium: heat properties
- Melting point: 1259 [986 °C (1807 °F)] K
- Boiling point: (no data) K
- Enthalpy of fusion: 20.5 kJ mol-1
Berkelium: atom sizes
- Atomic radius (empirical): (no data) pm
- Molecular single bond covalent radius: 168 (coordination number 3) ppm
- van der Waals radius: (no data) ppm
- Pauling electronegativity: 1.3 (Pauling units)
- Allred Rochow electronegativity: 1.2 (Pauling units)
- Mulliken-Jaffe electronegativity: (no data)
Berkelium: orbital properties
- First ionisation energy: 598.00 kJ mol‑1
- Second ionisation energy: 1150 kJ mol‑1
- Third ionisation energy: 2080 kJ mol‑1
- Universe: (no data) ppb by weight
- Crustal rocks: (no data) ppb by weight
- Human: (no data) ppb by weight
Berkelium: crystal structure
Berkelium: biological data
- Human abundance by weight: (no data) ppb by weight
Berkelium has no biological role.
Reactions of berkelium as the element with air, water, halogens, acids, and bases where known.
Berkelium: binary compounds
Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of berkelium where known.
Berkelium: compound properties
Bond strengths; lattice energies of berkelium halides, hydrides, oxides (where known); and reduction potentials where known.
Berkelium: historyBerkelium was discovered by Glenn T. Seaborg, Stanley G. Thompson, Albert Ghiorso in 1949 at USA. Origin of name: named after "Berkeley", a city in California, home of the University of California, USA.
Isolation: coming soon!