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He was the first one in talking about atomic nucleus.
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Atomic particle with negative charge.
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Atoms of the same element with the same atomic number and different mass number.
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He proposed the plum pudding model of the atom.
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Region of the atom where electron is likely to be.
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Atomic particle without charge.
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Atomic particle with positive charge.
8
He was the first one in talking about energy levels.
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