bellsimps2053 bellsimps2053 30-01-2024 Chemistry contestada 24.1% of all the isotopes of an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu. What is the average atomic mass of this element? a. X amu b. Y amu c. Z amu d. W amu