The easiest would be Pb-206 because it's stable
1. Element
2. Sugar and window cleaner
3. Heterogeneous mixture.
The test is detecting the gas through its reaction with lime water and the result so that the limewater will turn milky/cloudy
I’m assuming this is a true and false question. The answer is true. Phosphorus has a larger atomic mass. Phosphorus is number 15 on the periodic table. Phosphorus is a non-metal.
