(tl) talyum

listen to the pronunciation of (tl) talyum
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(Nükleer Bilimler) thallium
It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water
{i} metallic chemical element
Symbol Tl
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
a soft blue-white metal that is poisonous, used in photoelectric cells and to kill rats, mice, and insects. It is a chemical element : symbol Tl (thallos ; because it has a bright green line in its spectrum)
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
Atomic weight 203
a metallic chemical element (symbol Tl) with atomic number 81
(tl) talyum
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