Later scientists conducted experiments using other atoms that have only one electron in their valence shell: (copper, gold, sodium, potassium). The electron is a subatomic particle, symbol e − or β −, whose electric charge is negative one elementary charge. In 1927 Phipps and Taylor conducted a similar experiment, using atoms of hydrogen with similar results. A. Ernest Rutherford's experiment led to the nuclear model of the atom. C. Robert Millikan's postulates form the most accepted theory for the atomic structure. And while ancient magi and philosophers conceived of … D. Robert Millikan's results had little impact on determining of the charge of an electron. After carrying out the experiment, he concluded that the atoms were mainly empty space, and that most of the matter was contained in a small, very dense, Since the beginning of time, human beings have sought to understand what the universe and everything within it is made up of. Every time there were two lines formed on the metallic plate. He fired alpha particles at a thin gold foil. In 1905, Ernest Rutherford carried out an experiment to determine the nature of atoms. The electron has a mass that is approximately 1/1836 that of the proton. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. B. Ernest Rutherford's experiment established the plum pudding model of the atom.
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