Encyclopedia of Physical Science and Technology - Inorganic Chemistry

Author : Robert A. Meyers

Published in : AP publish

ISBN: 978-0080-91795-5

File type : pdf

File Size : 14 mb

Language : English

Description

Actinyl ion Dioxo actinide cations MO + 2 and MO 2 + Decay chain A series of nuclides in which each member transforms into the next through nuclear decay until a stable nuclide has been formed. Lanthanides Fourteen elements with atomic numbers 58 (cerium) to 71 (lutetium) that are a result of filling the 4 f orbitals with electrons. Nuclear fission The division of a nucleus into two or more parts, usually accompanied by the emission of neutrons and γ radiation.Nuclide Aspecies of atom characterized by its massnumber, atomic number, and nuclear energy state. A radionuclide is a radioactive nuclide. Primordial radionuclides Nuclides which were produced during element evolution and which have partly survived since then due to their long half lives. Radioactivity The property of certain nuclides of showing radioactive decay in which particles or γ radiation are emitted or the nucleus undergoes spontaneous fission. Speciation Characterization of physical and chemical states of (actinide) species in a given (chemical) environment. Transactinide elements Artificial elements beyond the actinide elements, beginning with rutherfordium (Rf), element 104. The heaviest elements, synthesized until now, are the elements 114, 116, and 118. At present, bohrium (Bh), element 107, is the heaviest element which has been characterized chemically; chemical studies of element 108, hassium (Hs), and element 112 are in preparation.
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