What was the main contribution of Robert Millikan?
What was the main contribution of Robert Millikan?
Robert Millikan was a physicist who discovered the elementary charge of an electron using the oil-drop experiment.
What was Millikan’s main contribution to atomic theory quizlet?
Although Milikan did not create an atomic model, he did add to the understanding of atoms by discovering how to calculate the charge of electrons. Around this time, subatomic particles were just beginning to be discovered. Ten years before his experiment, J.J.
What contributed to the atomic theory?
In the early 1800s, the English Chemist John Dalton performed a number of experiments that eventually led to the acceptance of the idea of atoms. He formulated the first atomic theory since the “death of chemistry” that occurred during the prior 2000 years. Dalton theorized that all matter is made of atoms.
What new information did Eugen Goldstein contribute to the atomic theory?
Eugene Goldstein discovered positive particles by using a tube filled with hydrogen gas (this tube was similar to Thomson’s tube). This resulted in The positive particle had a charge equal and opposite to the electron. The positive particle was named the proton.
What was John Dalton contribution to atomic theory quizlet?
What was Dalton’s Atomic Theory? All matter is composed of extremely small particles called atoms. All atoms of a given element are identical, having the same size, mass and chemical properties. Atoms of a specific element are different from those of any other element.
What is atomic theory in simple words?
Definition of atomic theory 1 : a theory of the nature of matter: all material substances are composed of minute particles or atoms of a comparatively small number of kinds and all the atoms of the same kind are uniform in size, weight, and other properties.
What is the contribution of Erwin Schrödinger?
Erwin Schrödinger, (born August 12, 1887, Vienna, Austria—died January 4, 1961, Vienna), Austrian theoretical physicist who contributed to the wave theory of matter and to other fundamentals of quantum mechanics.
How did Erwin Schrödinger contribute to the atomic theory?
In 1926 Erwin Schrödinger, an Austrian physicist, took the Bohr atom model one step further. Schrödinger used mathematical equations to describe the likelihood of finding an electron in a certain position. This atomic model is known as the quantum mechanical model of the atom.
What was Eugen Goldstein famous for?
Eugen Goldstein, (born Sept. 5, 1850, Gleiwitz, Prussia—died Dec. 25, 1930, Berlin), German physicist known for his work on electrical phenomena in gases and on cathode rays; he is also credited with discovering canal rays.
What was Eugen Goldstein atomic model?
The Raisin Pudding Model of the Atom (Eugen Goldstein) Goldstein concluded that in addition to the electrons, or cathode rays, that travel from the negatively charged cathode toward the positively charged anode, there is another ray that travels in the opposite direction, from the anode toward the cathode.
