Question #138267
The atomic mass of two stable isotopes of boron, 10 5B (19.78%) and 11 5B (80.22%) are 10.0129 amu and 11.0093 amu respectively. Calculate the average atomic mass of boron.
1
Expert's answer
2020-10-14T06:15:33-0400

Average atomic mass=(19.78%*10.0129amu + 80.22%*11.0093amu)/100%=10.8122amu


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