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1
The History and Use of Our Earth's Chemical Elements: A ...
Introduction The actinide elements are radioactive metals that begin with the
element actinium (8,,Ac) and continue through the element lawrencium (103Lr),
and there is a subseries of the actinide series known as the transuranic elements.
2
Synthesis of Lanthanide and
Actinide Compounds
In the actinide series, the An.iPn3 compounds appear with Pu4Sba. The change
from the AnaPn4 composition to the A^Pns composition coincides, in the actinide
series of elements, with the appearance of the lanthanide character (f electron ...
G. Meyer, Lester R. Morss, 1991
3
The Chemistry of the
Actinide and Transactinide Elements ...
The total energy also includes a centrifugal term þl(lþ1)/r2 (l is the azimuthal
quantum number), which tends to equalize the 5f, 6d, and 7p Coulomb energies,
and the details vary along the actinide series as first shown by Goeppert Mayer ...
Lester R. Morss, Norman M. Edelstein, J. Fuger, 2010
4
Actinides and the Environment
One of the main differences, therefore, between actinides and rare earths is the
steeper change of the f-d energy difference along the actinide series (Fig. 4). This
first of all makes americium trivalent, but also implies that a series of elements at
...
P.A. Sterne, A. Gonis, A.A. Borovoi, 1998
5
Crystalline Materials for
Actinide Immobilisation
Actinide Series 1.1.1. History Natural actinides were discovered more than 200
years ago (see Table 1.1.1). Natural uranium and thorium found limited use in the
18th and 19th centuries when they were of fundamental interest only.
Boris E. Burakov, Michael I. Ojovan, W. E. Lee, 2011
6
Element Recovery and Sustainability
All of the elements in the actinide series are radioactive and these unstable
nuclei readily undergo radioactive decay into daughter nuclides (another nucleus
type) by oc-and [Zr-decay or decay to a lower energy state (y-decay). As a
general ...
Andrew Hunt, George A. Kraus, James H. Clark, 2013
7
Neptunium Dioxide Precipitation Kinetics in Aqueous Systems
The stability of its complexes with other ions is weakest at the beginning of the
actinide series where the ionic radii are larger, and increases slightly with the
decreasing ionic radii that accompanies increasing atomic number in the series.
Amanda Melia Johnsen, 2008
8
Handbook on the Physics and Chemistry of Rare Earths
He termed this second rare-earth series the ''actinide series.'' The actinide
elements do not tend to occupy the 6d orbital, but there is a gradual filling of the
5f shell over the actinide series. Although Seaborg assumed that thorium would
be the ...
9
Synthetic Coordination and Organometallic Chemistry
5.3 COMPLEXES OF RADIOACTIVE ELEMENTS Among the natural and artificial
radioactive elements (Tc, Pm, Po, Fr, Ra, Ac, and actinides), coordination and
organometallic compounds of only technetium and the actinide series (An) are ...
Alexandr D. Garnovskii, Boris I. Kharissov, 2003
10
Concise Dictionary of Chemistry
Actinide series ¥ Active transport Activity series ¥ Adiabatic lapse rate Adsorbed
¥ Affinity Afforestation. acid. It can be formed by acrolein oxidation. It readily
polymerizes and is used in the manufacture of acrylic resins, transparent plastic ...
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Going Back to Californium: A Changing View of Covalency
... across the actinide series. These late actinides, such as californium, are thought to possess highly ionic, lanthanide-like bonding where the ... «Newswise, 六月 15»
The story of Neptunium's discovery
From staring at foldable chairs to going on to invent shopping carts, we are moving over to the discovery of an element in the actinide series. «The Hindu, 六月 15»
Finding A Place For Exotic Elements In The Periodic Table
In standard periodic tables, Lr is located at the end as the last element in the actinide series, placing it as an f-block element. However, some ... «Asian Scientist Magazine, 四月 15»
Unravelling relativistic effects in the heaviest actinide element
As the last element in the actinide series, and similar to lutetium (Lu) as the last element in the lanthanide series, it was expected that Lr has a ... «Space Daily, 四月 15»
Public Release: 9-Apr-2015 Unravelling relativistic effects in the …
As the last element in the actinide series, and similar to lutetium (Lu) as the last element in the lanthanide series, it was expected that Lr has a ... «EurekAlert, 四月 15»
3 Reasons To Buy Rare Earth Minerals Plc Now
... elements such as lanthanum, terbium, neptunium, fermium and others from the lanthanide and actinide series of elements. How wrong I was! «The Motley Fool UK, 二月 15»
Californium compound springs bonding surprise
Californium is the last member of the actinide series with an isotope long-lived enough to be studied in a standard radiological facility. «Chemistry World, 三月 14»
Could Tin be the Two-Dimensional Material of the Future?
While research last year indicated that the actinide series of elements (heavy metals) could produce topological insulators capable of operating ... «IEEE Spectrum, 十一月 13»
Exotic interactions uncovered in actinide systems
As well as uncovering the Φ interaction, the team also found that covalency does not necessarily increase uniformly as the actinide series is ... «Chemistry World, 十一月 13»
Facts About Lawrencium
Despite its placement late in the actinide series, lawrencium behaves more like the tripositive elements that come earlier in the actinide series, ... «LiveScience.com, 十月 13»
