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atomic number 81. How to pronounce the english word atomic number 81.Start with S. Learn from me.



atomic number 81
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  • n. 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

    同义词： thallium Tl

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    atomic number 81

    n.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

    同义词：thalliumTl




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