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C3-History of periodic table

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GCSE (C3) Chemistry Mapa Mental sobre C3-History of periodic table, creado por Lily O'Brien el 26/03/2017.
Lily O'Brien
Mapa Mental por Lily O'Brien, actualizado hace más de 1 año
Lily O'Brien
Creado por Lily O'Brien hace casi 8 años
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Resumen del Recurso

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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