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)
yttrium (Y) (it´rē
m),
yttrium
yt·tri·um ( t r - m)n. Symbol Y A silvery, ductile, rare-earth element used in various alloys. Atomic number 39. |
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 (Y) (it´rē
m),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.
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
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|