Iron has four naturally occurring isotopes, one of which is far more abundant that the others.Iron has an average atomic mass of 55.845 amu.Which isotope is most abundant?

Question

Quizplus · Accepted Answer

The isotope with an atomic mass closest to the average atomic mass of iron (55.845 amu) is most likely to be the most abundant. Option B, with an atomic mass of 55.9349 amu, is the closest to this average, indicating it is the most abundant isotope of iron listed.

Iron Has Four Naturally Occurring Isotopes, One of Which Is