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Periodic table

Part of Chemistry

  • Periodic table

    • Physical and chemical properties

      All substances have properties. These describe how a subject looks and behaves. Substances have both physical and chemical properties.

    • Developing the periodic table

      The periodic table was developed by grouping elements with similar properties. This, together with a later arrangement by atomic weight, led to a repeating pattern of properties.

    • The modern periodic table

      The periodic table is a way of organising the elements which is used by scientists to group elements with similar properties. It has a unique arrangement of rows and columns.

    • Making predictions about elements

    • Metals and non-metals

      Metals make up most of the known elements with non-metals making up the rest. They tend to have opposite properties. Metals are mostly solids;, non-metals liquids or gases.

    • Metal and non-metal oxides

      Metals and non-metals can be heated in oxygen to make compounds called oxides.

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