Tin (Sn) has two principal isotopes, 116Sn and 118Sn. A naturally occurring ore sample contains tin in which the ratio of 116Sn atoms to 118Sn atoms is 1.350 : 1.000. The measured average atomic mass of tin in this ore is 117.20 amu.
(1) Part (a) – Define the unknowns.
(2) Part (b) – Calculate the abundances.
(3) Part (c) – Assess the impact of a trace isotope.