1) Atomic number 81 2) Chemical element 3) Element discovered in 1861 4) Element number 81 5) Element used in thermometers 6) Element with the symbol Tl 7) Metal 8) Metallic element 9) Poison stunted the leek
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1) Tl
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https://www.crosswordclues.com/clue/thallium
Thallium is a chemical element with symbol Tl and atomic number 81. This soft gray post-transition metal is not found free in nature. When isolated, it resembles tin, but discolors when exposed to air. Chemists William Crookes and Claude-Auguste Lamy discovered thallium independently in 1861, in residues of sulfuric acid production. Both used the ...
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http://en.wikipedia.org/wiki/Thallium
• (n.) 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.Thallium: words in t...
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http://thinkexist.com/dictionary/meaning/thallium/
(Tl), chemical element, metal of main Group IIIa, or boron group, of the periodic table, poisonous and of limited commercial value. Like lead, ... [6 related articles]
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http://www.britannica.com/eb/a-z/t/32
(Tl) A soft, bluish-gray metallic element in group IIIA of the periodic table; it was discovered by William Crookes in London in 1861. Thallium resembles lead and is obtained as a by-product of processing zinc or lead ores. Its most common isotope is
205Tl...
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http://www.daviddarling.info/encyclopedia/T/thallium.html
<chemistry> 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. ... Origin: N...
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http://www.encyclo.co.uk/local/20973
(Tl) (thal´e-әm) a chemical element, atomic number 81, atomic weight 204.37. Its salts are active poisons that may cause alopecia, liver and kidney damage, blindness, and neurologic and psychic symptoms such as ataxia, restlessness, delirium, hallucinations, delusions, and semicoma.&nb...
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http://www.encyclo.co.uk/local/21001
Thal'li·um noun [ New Latin , from Greek ... young or green shoot or branch, twig. So called from a characteristic bright
green line in its spectrum.]
(Chemistry) A rare metallic element of the aluminium group found in some minerals, as certain pyrites, and also in the lead-chamber deposit ...
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http://www.encyclo.co.uk/webster/T/37
(Tl) Type: Term Pronunciation: thal′ē-ŭm Definitions: 1. A white metallic element, atomic no. 81, atomic wt. 204.3833; 201Tl (half-life equal to 3.038 days) is used to scan the myocardium.
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http://www.medilexicon.com/medicaldictionary.php?t=91131
Thallium: A metallic element having the symbol Tl and the atomic number 81 and an atomic weight of about 204. Thallium enters the environment primarily from coal-burning and smelting, in which it is a trace contaminant of the raw materials. It stays in the air, water, and soil for a long time and is not broken down. It builds up in fish and shellfi...
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http://www.medterms.com/script/main/art.asp?articlekey=18758
Thallium is a metal element with the symbol Tl.
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http://www.probertencyclopaedia.com/browse/GT.HTM
[
n] - a soft gray malleable metallic element that resembles tin but discolors on exposure to air
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http://www.webdictionary.co.uk/definition.php?query=thallium
Thallium is a soft, silvery-grey, reactive metal which is only found as a minor constituent of various minerals (it has an abundance of 0.6 ppm in the earth`s crust), from which the metal is obtained by electrolytic reduction in aqueous solution. Thallium tarnishes readily in moist air and reacts with steam to form TlOH. It is readily soluble in ac...
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https://www.encyclo.co.uk/local/20687
Tl noun a soft grey 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
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https://www.encyclo.co.uk/local/20974
Soft, bluish-white, malleable, metallic element, atomic number 81, relative atomic mass 204.38. It is a poor conductor of electricity. Its compounds are poisonous and are used as insecticides and rodent poisons; some are used in the optical-glass and infrared-glass industries and in photocells. Discovered spectroscopically by its gr...
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https://www.encyclo.co.uk/local/21221
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