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Born in England September 5th or 6th, 1766.

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He was elected a member of the Manchester Literary and Philosophical Society quickly after he arrived at Manchester.

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He was elected a member of the Manchester Literary and Philosophical Society quickly after he arrived at Manchester.

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He was a teacher at a school him and his brother bought.

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He was a teacher at a school him and his brother bought.

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His atomic theory began to prove correct as time went on.

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His atomic theory began to prove correct as time went on.

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Defined partial pressure in terms of a physical law

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Defined partial pressure in terms of a physical law

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After the age of 50, Dalton did very little science work.

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After the age of 50, Dalton did very little science work.

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Claimed that atoms of different elements vary in size and mass.

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Claimed that atoms of different elements vary in size and mass.

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Upheld his view that the atmosphere was a mixture of about 80% nitrogen and 20% oxygen against popular belief.

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Upheld his view that the atmosphere was a mixture of about 80% nitrogen and 20% oxygen against popular belief.

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His theory was only like atoms in a gas mixture repel, and different atoms attract.

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His theory was only like atoms in a gas mixture repel, and different atoms attract.

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which was proved to be wrong.

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Created the law of multiple proportions.

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Created the law of multiple proportions.

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Ross, Sydney. "John Dalton". Encyclopedia Britannica, 23 Jul. 2021, https://www.britannica.com/biography/John-Dalton. Accessed 2 November 2021.

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Ross, Sydney. "John Dalton". Encyclopedia Britannica, 23 Jul. 2021, https://www.britannica.com/biography/John-Dalton. Accessed 2 November 2021.