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Made the first periodic table with 33 elements
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Gouped elements arccording to there properties
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Proposed the Law of Octaves which states that elements repeat their chemicla properties every 8 elements
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Rearranged the periodic table by atomic weight
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Remade the periodic table with 56 elements
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Discovered elements 94 to 102
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.