An unknown element, A, is isolated and examined. It is determined that
22% of the sample is composed of
the isotope 22A, 36% of the sample is
the isotope 24A, and the other 42%
of the sample is composed of 27A.
Based on this information, what is the
atomic mass of element A?4. An
unknown element, Z, is isolated and
examined. It is determined that 82%
of the sample is composed of the
isotope 987 while the other 18% of
the sample is composed of 102Z.
Based on this information, what is the
atomic mass of element Z?