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pictures atoms as tiny, indestructible particles, with no internal structure.
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British scientist, discovers the electron. later leads to his plumpudding model. pictures electrons embedded in a sphere of positive electrical charge.
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japanese physicist, suggests that an atom has a central nucleus. Electrons move in orbits like the rings around saturn
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each energy sublevel corresponds to an orbital of a different shape, which describes where the electron is likely to be found.
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An atom has a small, dense, positively charges nucleus. Electrons move around the nucleus.
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proposed that an electron is found only in specific circular paths, or orbits, around the nucleus.
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moving particles like electrons have some properties of waves. Within a few years, experimental evidence supports the idea
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determines the allowed energies an electron can have and how likely it is to find the electron in various locations around the nucleus.
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develops mathematical equation to describe the motion of electrons in atoms. His work leads to the electron cloud model.
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confirms the existence of neutrons, which have no charge. Atomic nuclei contain neutrons and positively charges protons.