Cleveite is a radioactive mineral containing uranium and found in Norway. Radioactive decay is the process in which an unstable Atomic nucleus loses energy by emitting ionizing particles and Radiation. A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition a highly ordered atomic structure and specific Uranium (jʊˈreɪniəm is a silvery-gray Metallic Chemical element in the Norway ( Norwegian: Norge ( Bokmål) or Noreg ( Nynorsk) officially the Kingdom of Norway, is a Constitutional It is an impure variety of uraninite, and has the composition UO2 with about 10% of the uranium substituted by rare earth elements. Rare earth elements and rare earth metals are according to IUPAC, the collection of seventeen Chemical elements in the Periodic table, namely [1] It was named after Swedish chemist Per Teodor Cleve. Per Teodor Cleve ( Stockholm February 10, 1840 &ndash Uppsala June 18, 1905) was a Swedish Chemist
Cleveite was the first known terrestrial source of helium, which is created by the alpha radiation of the uranium and then lies trapped (occluded) within the mineral. Helium ( He) is a colorless odorless tasteless non-toxic Inert Monatomic Chemical Alpha decay is a type of radioactive decay in which an Atomic nucleus emits an Alpha particle (two protons and two neutrons bound together into a particle The first sample of helium was obtained by William Ramsay in 1895 when he treated a sample of the mineral with acid. Sir William Ramsay (2 October 1852 &ndash 23 July 1916 was a Scottish chemist who discovered the Noble gases and received the Nobel Prize in Year 1895 ( MDCCCXCV) was a Common year starting on Tuesday (link will display full calendar of the Gregorian calendar (or a Common year In Computer science, ACID ( Atomicity Consistency Isolation Durability) is a set of properties that guarantee that Database transactions are [2] Cleve and Abraham Langlet succeeded in isolating helium from cleveite at about the same time. Nils Abraham Langlet ( July 9 1868 - March 30 1936; known by his second given name was a Swedish chemist.
Yttrogummite is a variant of cleveite also found in Norway. Norway ( Norwegian: Norge ( Bokmål) or Noreg ( Nynorsk) officially the Kingdom of Norway, is a Constitutional
See also
References
- ^ http://www.mindat.org/min-29957.html Mindat
- ^ http://www.archive.org/details/becquerelraysthe00raylrich Rayleigh, Robert and John Strutt, 1904, The Becquerel rays and the properties of radium, London, E. This is a List of Minerals for which there are Wikipedia articles This is a list of Minerals named after people. The chemical composition follows name when available Arnold
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic