The element antimony has an atomic weight of 122 and consists of two stable isotopes antimony-121 and antimony-123. the isotope antimony-121 has a mass of 121 amu and a percent natural abundance of 57.3 %. the isotope antimony-123 has a percent natural abundance of 42.8 %. what is the mass of antimony-123?
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The element antimony has an atomic weight of 122 and consists of two stable isotopes antimony-121 an...
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