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Aristotle disagreed with Democritus' ideas that atoms move through empty space. He completly denied the existence of atoms due to personal ideas about nature.
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Democritus was the first person to suggest that matter cannot be divided. Came up with the word "atom." He couldn't figure out what holds atoms together.
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English Schoolteacher who showed the beginning of development of the modern atomic theory. Revived the term "atom."
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Rutherford studied how positivley charged α-particles interacted with solid matter. He designed an expirement to see if the particles would be deflected as they passed through a thin sheet of gold.
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He is a physicist who designed a series of CRT expirements at Cambridge to ditermine the ratio of the particle's charge to its mass
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He designed an oil drop apparatus to see the charge of electron. He also determined the magnitude of the charge of electron. Also determined the mass of the electron.