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C2 Periodic Table

Chemistry Revision

QuestionAnswer
How did John Dalton arrange elements within the first 'periodic table'? By the elements' atomic weights -That was measured during chemical reactions
Who produced the second 'periodic table' adding onto John Daltons ideas? How did he arrange the elements John Newlands -By the elements' atomic mass
What did John Newlands discover after arranging the elements? What did he call his discovery? Every eighth element had similar properties -The law of octaves
What was wrong with John Newlands' periodic table? He didn't leave gaps for elements that weren't discovered as he didn't know there were still more undiscovered elements
Who redid the periodic table in 1869? Dmitri Mendeleev
Created by: i16eowen
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