yttrium


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yttrium

 [ĭ´tre-um]
a chemical element, atomic number 39, atomic weight 88.905, symbol Y. (See Appendix 6.) The radioisotope 90Y emits high energy beta particles, localizes predominantly in bone, and has been used in radiotherapy.

yt·tri·um (Y),

(it'rē-ŭm),
A metallic element, atomic no. 39, atomic wt. 88.90585.
[Ytterby, village in Sweden]

yttrium

/yt·tri·um/ (ĭ´tre-um) chemical element, at. no. 39, symbol Y. The radioisotope 90Y emits high energy beta particles, localizes predominantly in bone, and has been used in radiotherapy.

yttrium (Y)

[it′rē·əm]
Etymology: Ytterby, Sweden
a scaly, grayish metallic element. Its atomic number is 39, and its atomic mass (weight) is 88.905. Radioactive isotopes of yttrium have been used in cancer therapy.

yttrium

 An ultrarare metalic element–atomic number, 39; atomic weight, 88.9–named after Ytterby in southern Sweden, which may be used in nuclear medicine scans

yt·tri·um

(Y) (it'rē-ŭm)
A metallic element, atomic no. 39, atomic wt. 88.90585.

yt·tri·um

(Y) (it'rē-ŭm)
A metallic element used in lasers.

yttrium (Y) (it´rēəm),

n a scaly, grayish metallic element with an atomic number of 39 and an atomic weight of 88.9059. Radioactive isotopes of yttrium have been used in cancer therapy.

yttrium

a chemical element, atomic number 39, atomic weight 88.905, symbol Y. See Table 6.
References in periodicals archive ?
This assumption fits established in [10] two-fold increase of the copper-base melt evaporation rate in presence of zirconium and yttrium, which form intermetallic compounds and low-melting eutectics in correspondence with similar equilibrium diagrams.
European consumers of compounds of rare-earth metals, of yttrium or of scandium are briefly overviewed as well.
GENERAL YTTRIUM OXIDE DESCRIPTION, COMPOSITION, INFORMATION ON INGREDIENTS, HAZARDS IDENTIFICATION, HANDLING AND STORAGE, TOXICOLOGICAL & ECOLOGICAL INFORMATION, TRANSPORT INFORMATION
Development of a pilot plant capable of recycling up to 80% indium and yttrium content, achieving a purity higher than 95%;
A barium-copper-oxide compound that has 90% yttrium and 10% praseodymium has a transition temperature of 75 K.
Nd:YAG (Neodyminum-doped yttrium aluminium garnet) Laser, or acceptable alternate meeting the following minimum specifications:
The Virginia team also found that other additives, such as the metals dysprosium and yttrium, yielded alloys particularly suitable for making large pieces.
com/research/11a112/the_2009_import_an) has announced the addition of the "The 2009 Import and Export Market for Calcium, Strontium, Barium, Rare Earth Metals, Scandium, and Yttrium in Iran" report to their offering.
Ann Chi, 17, of Terre Haute South Vigo High School in Indiana, studied atomic-scale phenomena involved in chemical reactions between ethane and the metal yttrium.
14 Physical Review Letters, Turukhin and his colleagues report using off-the-shelf crystals of yttrium silicate with some added praseodymium atoms to bring pulses of yellow laser light to a temporary standstill.
16,600 tonnes total rare earth oxides including yttrium oxide ("TREO") from the in situ resource now report to the Measured category, 67,000 tonnes TREO in the in situ Indicated category, an increase of 38,200 tonnes, All tailings now report to the Indicated category for a total of 46,000 tonnes surface material hosting 3,300 tonnes TREO at a lower grade of 7.