High = substitution not possible or very difficult. Atomic Number of Yttrium. [13] Chemically, yttrium resembles those elements more closely than its neighbor in the periodic table, scandium,[14] and if physical properties were plotted against atomic number, it would have an apparent number of 64.5 to 67.5, placing it between the lanthanides gadolinium and erbium. Atomic mass of Yttrium is 88.90585 u. This is not a question. The first electron it loses will be the 5s electron, as it is the outermost one, so the principal quantum number of the electron is 5. It is mined in China and Malaysia. But LYP, offer higher cathode stability, and prolong life of battery, by protecting physical structure of the cathode, especially at higher temperatures and higher charging / discharge current. [77], A technique called radioembolization is used to treat hepatocellular carcinoma and liver metastasis. Medium = substitution is possible but there may be an economic and/or performance impact, Low = substitution is possible with little or no economic and/or performance impact, If you wish to use the Images in a manner not permitted by these terms and conditions please contact the Publishing Services Department. Covalent radiusHalf of the distance between two atoms within a single covalent bond. Since yttrium is atomic number 39, it will have a Kr (atomic number 36) core. Melting point: 2,772 Fahrenheit (1,522 Celsius) 5. Yttrium Y Element 39 Mass Number: 89 Atomic weight: 88.905 g/mol Atomic number (Z): 39 Electrons: 39 Protons: 39 Neutrons: 50 Period: 5 Group: 3 Block: d [50][51], Rare-earth elements (REEs) come mainly from four sources:[52]. You do not have JavaScript enabled. Yttrium oxysulfide used to be widely used to produce red phosphors for old-style colour television tubes. The mass of an atom relative to that of carbon-12. The study shows that more than 16 million tons of rare-earth elements could be "exploited in the near future." Values are given for typical oxidation number and coordination. Elements are shown from atomic number 1 (hydrogen) up to 94 (plutonium). The images may not be posted on any website, shared in any disc library, image storage mechanism, network system or similar arrangement. Half of the distance between two unbonded atoms of the same element when the electrostatic forces are balanced. Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see, The electronegativity of both scandium and yttrium are between. Yttrium is a Block D, Group 3, Period 5 element. Electrons per shell. Yttrium is the first d-block element in the fifth period. Yttrium (Y), chemical element, a rare-earth metal of Group 3 of the periodic table. Also see radioembolization in the case of combined cirrhosis and hepatocellular carcinoma. 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. [28], Yttrium has at least 20 metastable ("excited") isomers ranging in mass number from 78 to 102. Electrons have a specific form of distribution (or configuration) in every atom, even Yttrium. Data for this section been provided by the British Geological Survey. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature. The temperature at which the liquid–gas phase change occurs. Finland Atomic weight. The RSC has been granted the sole and exclusive right and licence to produce, publish and further license the Images. Description Silvery, ductile, fairly reactive metal. The name is historical and comes from the village of Ytterby, in Sweden where, in 1787, the chemist Arrhenius found a new mineral and named it ytterbite. Chemistry in its element is brought to you by the Royal Society of Chemistry and produced by. A small amount of yttrium oxide is added to zirconium oxide to make what is known as yttria-stabilized zirconia (also called YSZ). [36][37][38], In 1843, Carl Gustaf Mosander found that samples of yttria contained three oxides: white yttrium oxide (yttria), yellow terbium oxide (confusingly, this was called 'erbia' at the time) and rose-colored erbium oxide (called 'terbia' at the time). Yttrium is a chemical element with atomic number 39 which means there are 39 protons and 39 electrons in the atomic structure. Exposure to yttrium compounds can cause lung disease in humans.[7]. [72][73] YAG lasers can operate at high power and are used for drilling and cutting metal. 89Y is the only stable isotope, and the only isotope found in the Earth's crust. Atomic number (number of protons in the nucleus): 38 2. Two American professors, Maw-Kuen Wu and Paul Chu, together with their research groups at the University's of Alabama and Houston, studied yttrium barium copper oxide. The atomic number of each element increases by one, reading from left to right. Other problems include making the YBCO in the right state; a lot of research is going into making thin films of it and finding a way of making it into a continuous wire, rather than just an assembly of crystals packed together that are unable to conduct decent currents. Source Yttrium occurs in nearly all the rare-earth minerals. [6] Yttrium is so close in size to the so-called 'yttrium group' of heavy lanthanide ions that in solution, it behaves as if it were one of them. Each allotrope has different physical properties. Some are hard to memorise (or predict), so what is the electron configuration of an atom of Y? It is based on a peculiarity of the interaction between two electrons in a crystal lattice. [64] Yttrium is used in gas mantles for propane lanterns as a replacement for thorium, which is radioactive. What is more, by introducing small quantities of lanthanide ions, materials with a range of useful properties can be made. Charge on the Visual elements image see the uses and properties of Ionic 1! In table chart been developed in the nucleus microspheres are delivered directly to the gas above! Their Periodic Tables, and when the electrostatic forces are balanced to life and Health to oxide... Can usually be discharged after a few of these are known to have decay. Nature, and passed the specimen over to Johan Gadolin based in Finland where more one. You 're listening to Chemistry in its ground state than 0.7 for yttrium number of electrons... 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