IB Questionbank
Question. The element antimony, Sb, is usually found in nature as its sulfide ore, stibnite, Sb2S3 S b 2 S 3. This ore was used two thousand years ago by ancient Egyptian women as a cosmetic to darken their eyes and eyelashes. Antimony contains two stable isotopes, 121Sb 121 Sb and 123Sb 123 Sb. The relative atomic mass of antimony is given in ...
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