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gravimetric analysis- a set of quantitative analytical techniques based on measurement of a sample's mass. green chemistry- branch of chemistry concerned with lessening the environmental effect of chemicals, including development of new materials and processes. ground state- the lowest energy state of ...
select article Comparison of uranium complexes with methyl-glutarimidedioxime vs. glutarimidedioxime: A methyl change generates different consequences in thermodynamic equilibria and coordination modes Short communicationAbstract only Comparison of uranium complexes with methyl-glutarimidedioxime vs. glutarimidedioxim...
Advances in nuclear physics made possible the synthesis of the transuranium elements, with atomic numbers from 93 to 105. Work on the synthesis of transuranium elements opened up a new era in the history of inorganic chemistry. Research in this area is being conducted in the USSR, the USA,...
and all atoms with 92 protons in their nuclei are atoms of the element uranium. 94 different chemical elements or types of atoms based on the number of protons exist naturally. A further 18 have been recognised byIUPACas existing artificially only. Although all the nuclei of all atoms belongin...
Scientists have discovered a brand-new kind of magnet hiding out in a uranium compound. The compound, USb2 (a compound of uranium and antimony), a so-called "singlet-based" magnet, is novel in that it generates magnetism in an entirely different way than any other magnet known to scientist...
However, western blot analysis has not revealed any cytochrome c3 in the periplasmic extracts from cells pre-grown in uranium; instead they were found tightly bound with insoluble U (IV) when the contents of periplasmic space were harvested by altering the pH. The role of cytochrome c3 was ...
Uranium-238 is the most abundant isotope of uranium, and its decay occurs much more slowly, exhibiting a half-life of more than four billion years (Figure 1). Figure 1. Both U-238 and Tc-99m undergo spontaneous radioactive decay, but at drastically different rates. Over the course of ...
Neptunium was the first actinide element to be artificially synthesized, yet, compared with its more famous neighbours uranium and plutonium, is less conspicuously studied. Most neptunium chemistry involves the neptunyl di(oxo)-motif, and transuranic compounds with one metal–ligand multiple bond are...
He notes that the first successes for this approach came with Fermi’s discovery of transuranic elements, but it also provided the breakthrough in the search for the four elements lighter than uranium still missing from the periodic table** — element 43 had been made in the cyclotron at Berk...