actinide

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  • noun

Synonyms for actinide

any of a series of radioactive elements with atomic numbers 89 through 103

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References in periodicals archive ?
The model will simulate both measurements to determine an overall actinide measurement, with appropriate error propagation.
The effect of 5f electrons of early actinide metals (Th-Np) has attracted considerable attention for years [11-14].
Table1 shows my longest elemental words for the 18 groups, counting thelanthanides and actinides as part of Group 3.
Covering first metal complexes then transition metal chemistry, they discuss such topics as the correct empirical formula of complexes, isomerism and stereochemistry, metal carbonyls and nitrosyls, the vanadium group, and the actinides.
The nature of the low-lying states in our lanthanides and actinides chains of isotopes can be illustrated in Figures (3,4) by examining the ratios of the excitation energies R(4/2) and R(6 /4) as a function of neutron number.
Lithex tenements cover areas which contain the valuable transition metal minerals including tin, tantalum, niobium, alkali metals including lithium, potassium and with scope to define rare mineral lanthanides and actinides -- rare earth minerals.
For example, monosodium titanate (MST) (1) and sodium nonatitanate (SNT) (2) are amorphous or poorly crystalline materials that are effective ion-exchange materials for the removal of strontium and actinides (e.g., Pu, Np, U) from highly alkaline nuclear waste solutions.
Thorium reactors burn waste actinides, including plutonium generated in uranium reactors, increasing power generation, while at the same time reducing problem waste.
Actinium was the key element in giving the modern periodic table its shape, since Seaborg and his colleagues decided to cleave all the heavy elements known at the time--now called the actinides, after their first brother--and cordon them off at the bottom of the table.
Giving details of the project, KS Parthasarthy, senior scientist at the Department of Atomic Energy said the AHWR300-LEU Advanced Heavy Water Reactor, produces much less plutonium and minor actinides compared to Pressurized Water Reactors (PWR) which is the mainstay internationally.
Radioactivity and nuclear processes and properties are generally considered the reserve of physics, but there is a subspecialty of chemistry that incorporates such phenomena as factors in the chemistry of radioactive elements such as the actinides, radium, and radon and of equipment such as nuclear reactors designed to perform nuclear processes.