Question: A certain element consists of two stable isotopes. The first has an atomic mass of 112.9043 amu and a percent natural abundance of 4.28 %.

A certain element consists of two stable isotopes. The first has an atomic mass of 112.9043 amu and a percent natural abundance of 4.28 %. The second has an atomic mass of 114.9041 amu and a percent natural abundance of 95.72 %.

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