Chemistry, 13.07.2021 05:20 cici86

The average atomic mass of boron is 10.81 amu. Based on the atomic mass of B-10 and the relative abundances of the boron isotopes, what is the atomic
mass of B-11?
Isotope
Atomic mass (amu)
Relative abundance (%)
B-10
10.013
19.9
B-11
80.1
O A. 12.434 amu
OB. 11.009 amu
O C. 11.801 amu
O D. 9.084 amu

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The average atomic mass of boron is 10.81 amu. Based on the atomic mass of B-10 and the relative ab...

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