tl
Noun
Meaning
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
Source: WordNetSynonyms
thallium
atomic number 81
compliment
heavy metal
periodic table
chemical element
noble gas
metallic element
post-transition metal
poisonous metal
ductile metal
soft metal
toxic element
corrosive metal
electronegative element
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