kakajajahahahbs kakajajahahahbs 23-12-2022 Chemistry contestada 35. What is the set up used to determine the average atomic mass of Boron in #34? A. (10 + 11) /2 B. (10 x .20) + (11 x .80) C. 11 + 10 D. (10 x .20) + (11 x .80) /2