|Group||Actinides||Melting point||986°C, 1807°F, 1259 K|
|Block||f||Density (g cm−3)||14.78|
|Atomic number||97||Relative atomic mass|||
|State at 20°C||Solid||Key isotopes||247Bk, 249Bk|
|Electron configuration||[Rn] 5f97s2||CAS number||7440-40-6|
|ChemSpider ID||22409||ChemSpider is a free chemical structure database|
- It is a radioactive chemical element with the atomic number 97.
- They are traced in different parts of the planet where nuclear tests were conducted.
- It is a member of the actinide and transuranium element series in the periodic table.
- It was the fifth transuranium discovered.
- Presently, the element is not used biologically or for technological purposes.
- It was used for the atmospheric nuclear weapons tests between 1945 and 1980.
- Its isotopes are used for basic scientific research.
- The element’s mass numbers range from 235 to 254 and about twenty isotopes and six nuclear isomers of the element have been characterized.
- Every isotope of the element is radioactive.
- The element was produced by Kenneth Street Jr. Albert Ghiorso and Glenn T.Seaborg at the University of California.
- The primary investigations for berkelium were only on co-precipitation and ion exchange till the year 1952.