Chemistry

Question Analysis
This question involves calculating the missing isotope abundance using the total abundance rule (sum of all abundances = 100%).
The main focus is on applying basic percentage addition/subtraction for isotopic abundances.

Key Concept Explanation
Total percent abundance of all isotopes of an element = 100%.
Missing abundance = 100% - (sum of known abundances).

Step-by-Step Solution
1. Sum known abundances: 92.23% (Si-28) + 4.67% (Si-29) = 96.90%
2. Calculate Si-30 abundance: 100% - 96.90% = 3.10%

Commo...