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C3-History of periodic table

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GCSE Chemistry (C3) Mind Map on C3-History of periodic table, created by Lily O'Brien on 26/03/2017.
Lily O'Brien
Mind Map by Lily O'Brien, updated more than 1 year ago
Lily O'Brien
Created by Lily O'Brien about 7 years ago
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Resource summary

C3-History of periodic table
  1. Newlands 1864
    1. Every 8th element had similar properties - Newlands' Octaves.
      1. The pattern broke down on the 3rd row. He left no gaps for undiscovered elements.
        1. Groups contained elements that didnt' have similar properties and he mixed up metals and non-metals
    2. Dmitri Mendeleev-1869
      1. Arranged elements in order of atomic mass like Newlands
        1. Left gaps in order to keep elements with similar properties in same vertical columns
          1. Newly discovered elements fit into his table perfectly.
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