Which information did Millikan contribute to the understanding of electrons?

Question

A. He determined the amount of change 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 elementary charge of the electron. His work provided precise values for the charge of the electron and helped to confirm the quantized nature of electric charge.