astatine


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astatine

 [as´tah-tēn]
a chemical element, atomic number 85, atomic weight 210, symbol At. (See Appendix 6.)

as·ta·tine (At),

(as'tă-tēn),
An artificial radioactive element of the halogen series; atomic no. 85, atomic wt. 211.
[G. astatos, unstable]

astatine

/as·ta·tine/ (as´tah-tēn) a chemical element, at. no. 85, symbol At.

astatine (At)

Etymology: Gk, astasis, unsteady
a very unstable, radioactive element that occurs naturally in tiny amounts. Its atomic number is 85; the atomic mass of its longest lived isotope is 210.

as·ta·tine

(At) (as'tă-tēn)
An artificial radioactive element of the halogen series; atomic no. 85, atomic wt. 211.
[G. astatos, unstable]

astatine

a chemical element, atomic number 85, atomic weight 210, symbol At. See Table 6.
References in periodicals archive ?
The report depicts the global and Chinese market of Astatine industry including capacity, production, production value, cost and profit, supply and demand and Chinese import-export.
Nov 2003 Kickshaws In "Adirondack Shingles", a chemical element is concealed in each line of the poem (iron, gold, argon, boron, carbon, astatine, iodine, neon, oxygen, sulfur, xenon, zinc, tantalum, lead, silicon, silver, arsenic, tin)
A Tin (Sn) B Boron (B) C Astatine (At) D Arsenic (As) 4.