The Periodic table C3

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  • The Periodic table
    • The modern periodic table
      • the discovey of subatomic particles gave the evidence to make the table.
      • the elements in the table are aaranged in electronic structure.
      • Similiar properties occur at regular intervals.
    • Alkali metals
      • They have...
        • Low melting and boiling points
        • Low density
        • More reactive as go down the group
    • The Halogens
      • The five elements in group 7.
      • Melting points that increase as down the group
      • Have coloured vapours
      • Less reactive as you go down
      • They make ionic salts when react with metal


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