Assignment: a model of an atom exploration

instructions: using what you’ve learned from building or drawing a model of the atom, answer each of the following questions completely.

questions

1. in the models, what particles do the colored and plain sesame seeds represent? what particles do the poppy seeds represent?

2. what does the fiberfill represent in the models?

3. in an atomic model, what particles are found inside the nucleus of an atom?

4. in an atomic model, what particles are found in the area surrounding the nucleus?

5. why are the poppy seeds placed in different places (not together)?

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.

Answer charle's law