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He is a physicist known for his discovery of electron.
Joseph John Thomson/J.J Thomson
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seesaw
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magnet
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gift
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thief
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5
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He gave the name to the particles and called it "atomos".
Democritus
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He proposed that all matter was composed of four elements: earth, water, air, and fire.
Aristotle
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He is credited for his discovery of proton.
Ernest Rutherford
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Atom is a solid sphere.
John Dalton
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