About The Word Thallium
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Thallium
| Thallium Definition And Meaning |
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What's The Definition Of Thallium?
[n] a soft gray malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores
Synonyms | Synonyms for Thallium: atomic number 81 | Tl Related Terms | Find terms related to Thallium: See Also | blende | metal | metallic element | sphalerite | zinc blende Thallium In Webster's Dictionary \Thal"li*um\, n. [NL., fr. Gr. ? young or green shoot
or branch, twig. So called from a characteristic bright green
line in its spectrum.] (Chem.)
A rare metallic element of the aluminium group found in some
minerals, as certain pyrites, and also in the lead-chamber
deposit in the manufacture of sulphuric acid. It is isolated
as a heavy, soft, bluish white metal, easily oxidized in
moist air, but preserved by keeping under water. Symbol Tl.
Atomic weight 203.7.
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