Question

1. based on your observations from the simulation, draw at least ten alpha particle paths as observed during the simulation on the plum pudding model.
2. based on the plum pudding model, describe the movement of alpha particles through the atom.
3. simulation 2 analysis
4. based on your observations from the simulation, draw at least ten alpha particle paths as observed during the simulation on rutherford’s actual results.
5. based on the plum pudding model, describe the movement of alpha particles through the atom.
6. what happened when the alpha particle collided with the center of the atom? in terms of charge of the alpha particle, what does that imply the charge of this center is?
7. if the outermost dotted line in the image above represents the very outside of the atom, what can be determined about the volume and location of all an atom’s mass?

art 3 - class reflection

1. what actually happened

Explanation:

1. For drawing alpha - particle paths in Rutherford's results: In Rutherford's experiment, most alpha particles passed straight through the gold foil, some were slightly deflected, and a very small number were deflected at large angles or even bounced back. Draw paths showing most going straight, some with small bends, and a few with large deflections.
2. For movement of alpha - particles in the plum - pudding model: In the plum - pudding model, the atom was thought to be a uniform positive charge with electrons (plums) embedded in it. Alpha particles, being positively charged, would experience a relatively small and uniform repulsive force as they passed through the atom, resulting in mostly straight - line or slightly curved paths.
3. When an alpha particle collided with the center of the atom: Alpha particles are positively charged. If they are deflected or bounce back upon collision with the center, it implies that the center of the atom has a positive charge, as like charges repel.
4. Regarding the volume and location of an atom's mass: If the outermost dotted line represents the outside of the atom, Rutherford's results suggest that most of the atom's mass is concentrated in a very small, dense nucleus at the center, with most of the atom being empty space.

Answer:

1. Draw paths with most alpha - particles going straight, some slightly deflected, and a few highly deflected.
2. Alpha particles experience a small, uniform repulsive force and follow mostly straight or slightly curved paths.
3. The alpha particle is deflected or bounces back, implying the center has a positive charge.
4. Most of the atom's mass is concentrated in a small, dense nucleus at the center, with most of the atom being empty space.