# Problem: The atomic masses of Boron-10 and Boron-11 are 10.012938 and 11.009305 amu, respectively. The average atomic mass of boron is 10.811 amu. Calculate the natural abundances of these two isotopes.

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###### Problem Details

The atomic masses of Boron-10 and Boron-11 are 10.012938 and 11.009305 amu, respectively. The average atomic mass of boron is 10.811 amu. Calculate the natural abundances of these two isotopes.