Duplicate
gallium has two naturally occurring isotopes (ga-69 and ga-71) and has an atomic mas...
Duplicate
gallium has two naturally occurring isotopes (ga-69 and ga-71) and has an atomic mass of 69.723 amu. the mass of ga-71 is 70.925 amu, and its natural abundance is 39.892%.
calculate the atomic mass (in amu) and natural abundance (in %) of the second isotope.
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