Chemistry Unit 3

1) Periodic table
2) Acids and bases
3) Water
4) Energy and Chemical reactions
5) Identifying anf and analysing substances

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  • Created by: Aaron
  • Created on: 24-05-11 16:33

The Periodic Table

The Periodic Table

  • The elements are in order of atomic number
  • Elements with the same porperties are sorted into groups

John Newlands (1864)

  • He only knew of the existence of 63 elements
  • He arranged them in order of relative atomic mass
  • He found similar properties amongst every eighth element in the seris

Dimitri Mendeleev (1869)

  • He left gaps to accomidate new discoveries


 

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