Final answer:
To calculate the average atomic mass for the element Op with its isotopes Op8 and Op10, you need to consider their natural abundances and isotopic masses.
The average atomic mass can be calculated by multiplying the natural abundance of each isotope by its mass and then adding the values together. In this case, the average atomic mass of Op is 8.06 amu.
Step-by-step explanation:
To calculate the average atomic mass for the element Op, we need to consider the natural abundances and isotopic masses of its isotopes Op8 and Op10. Op8 has a natural abundance of 97%, and Op10 has a natural abundance of 3%.
The average atomic mass can be calculated by multiplying the natural abundance of each isotope by its mass and then adding these values together. So for Op8, the calculation would be (0.97 x mass of Op8) + (0.03 x mass of Op10). Using the values given in the question, the calculation would be (0.97 x mass of Op8) + (0.03 x mass of Op10) = (0.97 x 8) + (0.03 x 10) = 7.76 + 0.30 = 8.06 amu.