Robert A. Millikan was an American experimental physicist. He measured the charge on the electron. (minus 1.602 176 53(14) x 10−19 coulomb)
Robert Millikan's oil drop experiment provided the first direct measurement of the elementary electric charge, demonstrating that it is a quantized quantity. This experiment was significant in confirming the existence of individual charges and contributed to the development of the modern understanding of atomic structure and the fundamental nature of electricity.
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Any, Robert Millikan determined the electrical charge of electron.
Millikan's oil drop experiment determined the charge of an electron, helping to establish the value of the elementary charge and providing evidence for the quantization of electric charge. This experiment also contributed to the accurate determination of the electron's mass and the understanding of the structure of the atom.
Robert Millikan's oil drop experiment, conducted in 1909, provided the first accurate measurement of the charge of the electron. By observing the behavior of tiny oil droplets in an electric field, Millikan demonstrated that electric charge is quantized, meaning it exists in discrete amounts. This finding reinforced the idea of subatomic particles and contributed to the understanding of atomic structure, leading scientists to recognize that atoms are composed of smaller charged particles. Millikan's work helped shift the scientific perspective toward a more nuanced model of the atom, incorporating the existence of electrons and their quantized nature.
No, Robert Millikan did not discover subatomic particles; rather, he is best known for his work on the oil drop experiment, which measured the elementary charge of the electron. His experiments provided crucial evidence for the quantization of electric charge and helped confirm the existence of electrons as subatomic particles. Although he contributed significantly to the understanding of atomic structure, the discovery of subatomic particles like electrons was attributed to other scientists, such as J.J. Thomson.
Robert A. Millikan was the first to determine the electrical charge of the electron.
Millikan's oil-drop experiments validated the existence of discrete, quantized electrical charges on particles within the atom. This supported the idea proposed by Thomson that electrons are fundamental particles with a specific charge.
Robert A. Millikan conducted many experiments throughout his long, distinguished career. If you're referring to the famous "oil drop" experiment that measured the quantum of electric charge, Millikan and Harvey Fletcher performed that particular one in 1909.
He discovered that the weight of an electron is 1836 times smaller than that of a hydrogen atom (atomis mass of 1)
The Millikan oil drop experiment was conducted by Robert Millikan in 1909 to measure the elementary electric charge (the charge of a single electron). In the experiment, tiny oil droplets were suspended in a chamber between two charged plates. By carefully controlling the electric field, Millikan was able to measure the charge on each droplet and determine the charge of a single electron. This experiment provided important evidence for the quantization of electric charge and contributed to the development of modern atomic theory.
Ernest Rutherford contributed significantly to our understanding of atomic structure in the early 20th century. His famous gold foil experiment in 1909 led to the discovery of the atomic nucleus.