Home > Science and Technology > Chemistry > Compounds and Elements

Research topic: californium

californium. (Image by Britannica)

Related pictures

Rate these pictures

californium

The Columbia Encyclopedia, Sixth Edition

californium [from California ], artificially produced, radioactive metallic chemical element; symbol Cf; at. no. 98; mass no. of most stable isotope 251; m.p. about 900°C; b.p. about 1,470°C; density unknown; valence +3. Californium is a member of the actinide series of chemical elements, found in Group 3 of the periodic table . Its chemical properties are similar to those of lanthanum . Eighteen isotopes of californium are known, with half-lives ranging from about 40 sec for californium-239 to about 900 years for californium-251, the most stable isotope. Californium-249... Read more

Californium (revised)
CALIFORNIUM (REVISED) Note: This article, originally published in 1998, was updated in 2006 for the eBook edition. Overview Californium is a transuranium element, or "beyond uranium" on the...said to be transuranium elements. Discovery and naming Californium was discovered in 1950 by a research team at the ... Read more

Californium
Californium melting point: 900 ° C boiling point: Unknown density: Unknown most common ions...with accelerated helium ions in a cyclotron, to produce approximately 5,000 atoms of a californium isotope of mass 245 and a half-life of 44 minutes. Californium, like all the actinide elements heavier than ... Read more

Rate these entries | See all related entries

Facts and information from other sites

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

	Rare fission processes.(research on splitting of californium-252)(Brief Article) ; ...that, in addition to normal spontaneous fission, the isotope californium-252 occasionally splits in two in such a way that no neutrons...fission events. Ramayya and his coworkers have also found that californium-252 sometimes breaks into three fragments--two of moderate... Read more
	Calcium + Californium = element 118, scientists say ; ...created a new superheavy element, atomic No. 118. Scientists said they smashed together calcium with the artificial element Californium to make an atom with 118 protons in its nucleus. The new element lasted for just one millisecond, but it was the heaviest... Read more
	Scientists create the heaviest chemical element ever made ; ...said they smashed together calcium with the manmade element Californium to make an atom with 118 protons in its nucleus. The new...was created last year in Russia using a minuscule amount of Californium provided by the Americans. After a millisecond, it decayed... Read more
	Germans charge 4 in nuclear crime ; ...material at a highway rest stop. The four were completing a sale of Californium 252 near the eastern German town of Freienhufen when they were detained on Wednesday. Californium 252 is produced in nuclear reactors and used to provide neutrons... Read more
	Findings.(scientific discoveries) ; ...the creation of a new superheavy element, known as element 118 or ununoctium, which was generated by firing calcium ions at californium; three atoms resulted from the experiments, and each lasted a small fraction of a second. Physicists in Geneva realized that... Read more
	Scientists' heavy discovery.(Science brief)(Joint Institute for Nuclear Research)(Ununoctium)(Brief article) ; ...In experiments conducted at the Joint Institute for Nuclear Research in Russia, three atoms of 118 were produced when a californium ion was bombarded with calcium ions. The new element, ununoctium, lasted for 0.9 milliseconds, after which it decayed to... Read more
	Bomb inspector ; ...warhead contains without opening it. Gus Caffrey of the Idaho Engineering and Environmental Laboratories and his colleagues use californium-252, an artificial radioactive element that emits neutrons, to zap the warhead. The materials inside absorb the neutrons... Read more
	U.S. and Russian team discover element 118.(IN THE NEWS)(Lawrence Livermore National Laboratory, Russia's Joint Institute for Nuclear Research)(Brief article) ; ...element 118. Three atoms of the superheavy element, which has yet to be named, were created by bombarding a target made of californium with high-velocity calcium ions. It quickly transformed into element 116, then 114, through alpha particle decay. This is... Read more
	Scientists announce creation of new element ; ...created a new super- heavy element, atomic number 118. Scientists said they smashed together calcium with the man-made element Californium to make an atom with 118 protons in its nucleus. The new element lasted for just one millisecond, but it was the heaviest... Read more
	Back on the Table? Element 118 is served up again. ; ...from different materials--an isotope of californium and calcium ions. During each of two...runs, the research team pummeled the californium with 10 million trillion calcium ions...in the second run in 2005--atoms of californium and calcium combined to form the new... Read more

For more facts and information, see all related premium articles

Online videos

The Boboy Poppers - Californium Medley

Add/Rate Videos

Free newspaper and magazine articles

	Equestrian.
	Glenn Seaborg, Nobel laureate discoverer of 10 elements, champion of science education, dies at 86.(Obituary)
	Elementary transadditions.

For Students and teachers!

HighBeam Encyclopedia provides students and teachers facts, information, and biographies from verified, citable sources, including:

Search hundreds of published sources: