Answered

Many theories in chemistry were developed based on properties that have been observed for particles we cannot see with our eyes. Which experiment in the development of atomic theory is a good exampl
statement? (SC.912.P.8.3)
A
Rutherford's gold foil experiment in which atoms were determined to be indivisible.
B
Rutherford's gold foil experiment in which alpha particles were shot at gold foil to show atomic orbitals.
C
Thomson's cathode ray experiment in which negatively-charged electrons moved towards a positive plate.
D
Thomson's cathode ray experiment in which positively-charged electrons were embedded in a sphere of negative charge.



Answer :

GinnyAnswer
In the development of atomic theory, Thomson's cathode ray experiment is a good example of an experiment that contributed to our understanding of particles we cannot see with our eyes.

C. Thomson's cathode ray experiment in which negatively-charged electrons moved towards a positive plate is the correct answer. This experiment led to the discovery of electrons, which are subatomic particles with a negative charge. By observing the behavior of these particles in a cathode ray tube, Thomson was able to deduce the presence of electrons and their movement towards the positive plate.

This experiment provided crucial evidence for the existence of subatomic particles within atoms and laid the foundation for the modern atomic theory. Therefore, Thomson's cathode ray experiment is a significant milestone in the history of chemistry and our understanding of the microscopic world.