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Atomic Structure - Diagrams of the Plum Pudding, Rutherford, and Bohr models of the atom. #bohr model #atomic structure #chemistry

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How did Rutherford figure out the structure of the atom without being able to see it? Simulate the famous experiment in which he disproved the Plum Pudding model of the atom by observing alpha particles bouncing off atoms and determining that they must have a small core.

This is the Plum Pudding Model. It was developed by JJ Thompson. He proposed this because of the Cathode ray experiments that he completed in the 1890s. These experiments proved the existence of negatively-charged particles associated with electrons. The Plum Pudding Model suggests negatively charged particles embedded in a ball of positive charges.

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The Plum Pudding Model, which was devised by J.J. Thompson by the end of the 19th century, was a crucial step in the development of atomic physics

JJ Thomson's Plum Pudding Model: negatively charged particles are surrounded by a positively-charged ball. Founded from the cathode ray experiments.

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1911: Ernest Rutherford's gold-foil experiments demonstrate that atoms have a solid nucleus. Top: Expected results: alpha particles passing through the plum pudding model of the atom undisturbed. Bottom: Observed results: a small portion of the particles were deflected, indicating a small, concentrated charge.

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Atomic Structure - Diagrams of the Plum Pudding, Rutherford, and Bohr models of the atom. #bohr model #atomic structure #chemistry

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