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All matter is made of atoms. Atoms are indisable and industructable. Dalton was born, september, 6 1766. Dalton died in 1844. He cam to the conclusion of the atomic thoery because of his colered blindness.
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He discovered the electrons by by experimenting with crookes, or cathrod ray tubes, he noticed the negitive chrage. Thomson was born in 1856, and died in 1940
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he discovered his thoery by looking over thompsons work, he notcied the elctorn, and protons.
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Our current atomic theory is , states that matter is composed of discret units called atoms.
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