In detail

Berkelium (Bk) - Properties


Atomic mass, symbol and atomic number

Berkelium is an artificially created element with the element symbol Bk and atomic number 97. In the periodic table it belongs to the actinoids with an atomic mass of 247 u. The chemical element discovered by Glenn T. Seaborg in 1949 is radioactive and is in a solid state of aggregation at room temperature.

Wanted poster: Berkelium (English Berkelium)

General
Chemical element:Berkelium
Symbol:Bk
Atomic number:97
Group:actinides
Period:7
Block:f-block
Series:actinides
Appearance:silver
explorers:Glenn T. Seaborg
Year of discovery:1949
Atomic properties
Atomic mass:247 u
Atomic radius:170 pm
Covalent radius:unknown
Van der Waals radius:unknown
Electron configuration:Rn 5f8 6d1 7s2
ionization:601 kJ / mol
Physical Properties
Physical state:firmly
Density:14.78 g / cm3
Crystal structure:hexagonal
Magnetism:paramagnetic
molar volume:16,84 ·10-6 m3/ mol
Mohs hardness:unknown
Melting point:986 ° C
Boiling point:unknown
Heat of fusion:unknown
Heat of vaporization:unknown
Thermal conductivity:unknown
Chemical properties
electronegativity:1,30

Did you know that ...

  • Although Berkelium is in the group of actinoids, but also belongs to the metals?
  • the shortest or most durable isotope of berkelium has a half life of 7 min or 1400 years?
  • the element Berkelium was named after the place of the first proof? (Berkeley, California)