- The Transition Elements
- They are found in the periodic table between groups 2 and 3. They are all metals and so are sometimes called the transition metals.
- Except for mercury they have higher melting and boiling points than the alkali metals.
- They are malleable and ductile and they are good conductors of heat and electricity.
- They react slowly or not at all with oxygen and water at ordinary temperatures.
- Most are strong and dense and are often used as building materials, often as alloys.
- They fom positive ions with varios charges e.g. Fe2+ and Fe3+
- Their compounds are often brightly coloured
- Many of them are catalysts for chemical reactions.