Based on the calculations, the average atomic mass of the isotopes shown in the table is equal to 36.9565 amu.
How to calculate the average atomic mass of isotopes?
In order to determine the average atomic mass of these isotopes, we would multiply the mass of each isotope by the relative abundance and divide by 100. Finally, we would add all the values together.
For Isotope-A:
Isotope-A = 36.456 × 68.0/100
Isotope-A = 36.456 × 0.68
Isotope-A = 24.7901.
For Isotope-B:
Isotope-B = 37.457 × 23.0/100
Isotope-B = 37.457 × 0.23
Isotope-B = 8.6151.
For Isotope-C:
Isotope-C = 39.459 × 9.00/100
Isotope-C = 39.459 × 0.09
Isotope-C = 3.5513.
Average atomic mass = 24.7901 + 8.6151 + 3.5513
Average atomic mass = 36.9565 amu.
Read more on isotopes here: https://brainly.com/question/364529
#SPJ2