Transition metals - AQAPhysical properties of transition elements

The transition elements are metals. They have high melting points and densities, and are strong and hard. They form coloured compounds and act as catalysts.

Part of Chemistry (Single Science)Atomic structure and the periodic table

Physical properties of transition elements

Most are . They include iron, copper and chromium. The transition elements are in the central part of the .

Period table with the transition metals in red.
Figure caption,
The transition elements are placed between groups 2 and 3 in the periodic table

Physical properties

The transition elements share some with all metals:

  • they conduct electricity in the solid and liquid states
  • they are shiny when freshly cut

Some properties of transition elements are different from those of the metals in . Compared to other metals, most transition metals have:

  • higher
  • higher
  • greater strength
  • greater hardness

Remember that these are typical properties – some transition metals may not show one or more of them. For example, mercury at just -39°C, so it is a liquid at room temperature.