Berkelium: the essentials

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: historical information

Berkelium 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.

Berkelium was discovered in December 1949 at Berkeley, Californi, USA, by Ghiorso and others by cyclotron bombardment of milligram amounts of americium with helium ions. Perhaps the first visible amounts of a pure berkelium compound, berkelium chloride, was produced in 1962. It weighed just 3 billionth of a gram.

Berkelium around us Read more »

Berkelium has no biological role.

Berkelium is a synthetic element that is not present in the geosphere.

Abundances for berkelium in a number of different environments. More abundance data »
Location ppb by weight ppb by atoms Links
Universe (no data) (no data) Chemical elements abundance by weight in the universe on a miniature periodic table spark table
Crustal rocks (no data) (no data) Chemical elements abundance by weight in the earth's crust on a miniature periodic table spark table
Human (no data) ppb by weight (no data) atoms relative to C = 1000000 Chemical elements abundance by weight in humans on a miniature periodic table spark table

Physical properties Read more »

Heat properties Read more »

Crystal structure Read more »

The solid state structure of berkelium is: hcp (hexagonal close-packed).

Berkelium: orbital properties Read more »

Berkelium atoms have 97 electrons and the shell structure is The ground state electronic configuration of neutral Berkelium is [Rn].5f9.7s2 and the term symbol of Berkelium is 6H15/2.


Isolation: coming soon!

Berkelium isotopes Read more »

Table. Stables isotopes of berkelium.
Isotope Mass
(atom %)
spin (I)
moment (μ/μN)

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