1. Below is the mass spectronomy analysis of the relative abundance of Zirconium isotopes. Answer the following in complete sentences. a. What is the most abundant isotope? What is the approximate relative abundance? b. How many neutrons are in Zr-91? c. Zirconium -93 is a radioisotope which decays to Niobium-93. Describe what happens in the nucleus as Zr-93 decays. d. Calculate the atomic weight of each Zr isotope. A {(mass.%),(mass*%)+(mass*%)}/1 00
100 —
50 —
Zr-90
Zr-92 Zr-94 Zr-911 Zr-96 I ! 90 92 94 96
Mass-to-charge ratio
2. Read the passage and answer the following questions in essay format.
