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3 Cards in this Set
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(1789) Antoine Lavoiser |
Made a detailed list of what he believed to be the elements. With his wife his list comtained 33 elements grouped into elements and non elements. His list included compounds. |
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(1820) jakob Berzilius |
Replaced geomatric patterns with thw abbreviation of the elements name. He used the weight of hydrogen to develop a system of atomic weights |
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(1829) Johann Dobereiner |
Was aware of 40 elements. Noticed that some groups had similar properties and called them triads. |
