Unit Cell Parameters The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants a , b and c a b c Periodic Table Element Comparison.
List of Elements 1 H - Hydrogen. Atomic Number. Atomic Symbol. Atomic Weight. Group in Periodic Table. Period in Periodic Table. Block in Periodic Table. Electronic Configuration. Melting Point. Boiling Point. CAS Number. Abundance in Universe. Abundance in Sun. Abundance in Meteorites. Abundance in Earth's Crust. Abundance in Oceans. Abundance in Humans. Space Group Name. Space Group Number.
Crystal Structure. Theseelements are identical with aldebaranium and cassiopeium, discovered independently and at about the same time by von Welsbach. Ytterbium occursalong with other rare earths in a number of rare minerals. It is commercially recovered principally from monazite sand, which contains about 0. Ion-exchange and solvent extraction techniques developed in recent years have greatly simplified the separation of the rare earths from one another.
The element was first prepared by Klemm and Bonner in by reducing ytterbium trichloride with potassium. Their metal was mixed, however,with KCl. Daane, Dennison, and Spedding prepared a much purer form in from which the chemical and physical properties of the element couldbe determined. Ytterbium has a bright silvery luster, is soft, malleable, and quite ductile. While the element is fairly stable, it should be kept in closedcontainers to protect it from air and moisture. Comprehensive data on the chemical element Ytterbium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Ytterbium.
Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies.
A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page. Kenneth Barbalace. One oxide was called erbium oxide and the other was named ytterbium. Health effects of ytterbium Ytterbium is a skin and eye irritant and it is also a suspected teratogen.
All compounds should be stored in closed containers, protected from air and moisture and treated as highly toxic. Today, ytterbium is primarily obtained through an ion exchange process from monazite sand Ce, La, Th, Nd, Y PO 4 , a material rich in rare earth elements.
Ytterbium has few uses. Most rare-earth metals have a valence of three ; however, that of cerium is 3. It's relatively safe to handle.
It's weakly radioactive and is primarily an alpha particle emitter. Alpha particles are very large so they can't really penetrate your outer layers of dead skin to damage living tissue.
Just wash your hands afterward. What is it used for? It also can be used in nuclear weapons. In a conventional uranium mine and mill, uranium ore is extracted from the Earth , typically through deep underground shafts or shallow open pits. The ore is transported to a mill, where it is crushed and undergoes a chemical process to remove the uranium. Yttrium is present in nearly all rare-earth minerals. It is obtained by mining the minerals bastnasite, fergusonite, monazite, samarskite and xenotime, which are mined in the USA, China, Australia, India and Brazil.
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