These blocks are named for the characteristic spectra they produce: sharp (s), principal (p), diffuse (d), and fundamental (f). The availability of suitable substitutes for a given commodity. Yttrium is a chemical element with atomic number 39 which means there are 39 protons in its nucleus. Ytterbium, which was first obtained in a pure state just some 50 years ago, only two calibrated measurements of its isotopic composition have been ever made. Ytterbium was discovered by Jean Charles Galissard de Marignac in 1878, in Geneva, Switzerland.He heated erbium nitrate until it decomposed and then extracted the residue, which contained an unknown white powder that he named ytterbium oxide (ytterbia). Atomic Number: 70 Atomic Symbol: Yb Atomic Weight: 173.054 Melting Point: 1,506 F (819 C) Boiling Point: 2,185 F (1,196 C) Word origin: Ytterby, a Swedish village, is the origin of the name ytterbium. There among the ash and charred remains of coral were found a couple of hundred atoms of element 99, later to be called einsteinium. They undergo deformation but depends on pressure and stress at temperature about -13OC and 795OC. In fact, it is the 43rd most abundant element on earth and has a greater natural abundance than tin, bromine, uranium or arsenic. The mass number represents the number of protons plus neutrons in the nucleus of an atom of the element. It slowly oxidises in air, forming a protective surface layer. Additional Notes: Ytterbium Menu. In the research community, luminescent ytterbium compounds that give out light in the near infra red (around 980 nm) are of current interest and are being developed for use as alternative luminescent probes. It is defined as being the charge that an atom would have if all bonds were ionic. While, the most common oxidation state of the lanthanides is indeed the +3 valence state, ytterbium, the last and smallest of the lanthanides or rare earths in the series is one of the exceptions Pimentel and Sprately were talking about. Here are interesting facts about element Yb, as well as a summary of key atomic data: The image is based on ancient Swedish rock carvings. The isotope Yb-174 has the potential to keep time more accurately than the current gold standard, which is a caesium fountain clock that is accurate to within a second every 100 million years. Group (1), (2)In 1907, in Paris, George Urbain separated ytterbia into two constituents. It has three allotropes forms: alpha, beta and gamma. CAS number The ground state electronic configuration of neutral ytterbium is [Xe].4f 14.6s 2 and the term symbol of ytterbium is 1 S 0.. Ytterbium: description Your user agent does not support the HTML5 Audio element. Ytterbium has few uses. 70. Values are given for typical oxidation number and coordination. Some elements exist in several different structural forms, called allotropes. This was achieved by heating erbium nitrate until it decomposed and then extracting the residue with water to obtain two oxides; a red one, which was identified as erbium oxide and a white powder, which was named ytterbium oxide. YTTERBIUM-168 isotope is used for Ytterbium-169 (Yb-169 isotope, 169Yb isotope) radionuclide (radioisotope) production (can be used in medical and technical purposes); List of Ytterbium Isotopes and Ytterbium Applications: Ytterbium-168 isotope (Yb-168 isotope, 168Yb isotope). A measure of the propensity of a substance to evaporate. Chemistry in its element is brought to you by the Royal Society of Chemistry and produced by.    Other Metals Ytterbium is also used in some laser systems and ytterbium fibre laser amplifiers are found in commercial and industrial applications where they are used in marking and engraving. Brian Clegg will be providing more insight into the reactions and naming of einsteinium in next week's Chemistry in its element. This means, that unlike Eu or Tb, which emit visible light, the light is in invisible to our eyes. These isotopes are ytterbium-168, ytterbium-170, ytterbium-171, ytterbium-172, ytterbium-173, ytterbium-174, and ytterbium-176. The higher the value, the larger risk there is to supply.    Crystal Structure, Element Groups: The number of protons in an atom. The percentage of an element produced in the top producing country. This is approximately the sum of the number of protons and neutrons in the nucleus. Data for this section been provided by the.    Number of Neutrons Data for this section been provided by the British Geological Survey. The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems. In its natural state it is a mixture of seven stable isotopes. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. This silver-colored rare earth element is one of several elements discovered from ores from a quarry in Ytterby, Sweden. Technical data for Ytterbium Click any property name to see plots of that property for all the elements. A horizontal row in the periodic table. Low = substitution is possible with little or no economic and/or performance impact. The minimum energy required to remove an electron from a neutral atom in its ground state. It has low toxicity. Members of a group typically have similar properties and electron configurations in their outer shell. In addition, ten radioactive isotopes are also known; these isotopes are unstable and break down into other isotopes giving out radiation in the process. 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