The result was of rutherford’s gold foil experiment demonstrated that the occupies a very small amount of the total space inside an atom.

The result was of Rutherford’s gold foil experiment demonstrated that the Nucleus occupies a very small amount of the total space inside an atom.

Explanation:

To perform this experiment Rutherford bombarded a very fine gold leaf (approximately 10-4 mm thick) by a beam of alpha (α) particles from a polonium sample. The polonium was inside a lead block with a hole through which only alpha particle emissions would be allowed to escape. In addition, hole plates were placed with holes in their centers that would orient the beam in the direction of the gold blade. And finally, a zinc sulfide-coated bulkhead, which is a fluorescent substance, was placed behind the slide, where the pathway of alpha particles could be seen.

At the end of this experiment, Rutherford noted that most alpha particles crossed the blade, did not deviate, or recede. Some alpha particles deviated, and very few receded. Based on these data, Rutherford concluded that, contrary to what Dalton thought, the atom could not be massive. But in fact, much of the atom would be empty and it would contain a very small, dense, positive nucleus.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e