Isotope mass fractions (those with abundances > 10⁻³) of the WD ejecta after periapsis passage for different values of b. As b decreases, the fractions of ¹²C and ¹⁶O after TDE decrease due to more nuclear burning, and the fraction of ⁵⁶Ni produced increases quickly. Intermediate-mass isotopes (Ne to Ca) first increase in fraction with decreasing b, and then decrease due to more favorable conditions for massive isotope (e.g., ⁵⁶Ni) production.