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13-09-2022
Chemistry

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Element X has three isotopes. The masses and % abundances of the isotopes are given in the table below. The average atomic mass of the element in amu. A. 39.68 B. 38.64 C. 39.07 D. 41.54 Mass (amu) Isotope Abundance 37.919 39.017 42.111 5.07% 15.35% 79.85%

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