Which information did Millikan contribute to the understanding of electrons?

Question

A. He determined the amount of charge on an electron.
B. He determined that electrons absorb or release specific amounts of energy.
C. He determined the ratio of mass to charge for electrons.
D. He determined that electrons do not move in specific orbits around the nucleus.

Answer 1

A. He determined the amount of charge on an electron.

Robert Millikan is best known for his oil drop experiment, which allowed him to measure the charge of the electron accurately. His work provided critical evidence for the quantization of electric charge and contributed significantly to our understanding of electrons.