Transition metals
I can describe the physical and chemical properties and some uses of transition metals, and compare them to Group 1 metals.
Transition metals
I can describe the physical and chemical properties and some uses of transition metals, and compare them to Group 1 metals.
Lesson details
Key learning points
- Transition metals are generally stronger, harder, more dense and have higher melting points than Group 1 metals.
- Transition metals react slowly with water or don’t react with it at all.
- Transition metals are often catalysts that speed up chemical reactions.
- Transition metals can form ions with different charges and their compounds often exhibit vibrant colours.
Common misconception
Students may think all metals react vigorously with water, and may believe all transition metals form only one type of ion, and might think that all metals are equally good catalysts.
Unlike Group 1 metals, transition metals react slowly with water or not at all. Transition metals can form ions with different charges, leading to compounds with varying properties and colours. Each reaction will be catalysed best by one catalyst.
Keywords
Transition metal - refers to a metal element placed in the block between Groups 2 and 3 in the periodic table.
Catalyst - a chemical that speeds up the rate of a reaction without itself being used up.
Ion - an atom or group of atoms with a positive or negative charge due to the loss or gain of electrons.
Density - calculated by dividing the mass of a substance by its volume; a measurement of how tightly packed a substance's particles are per unit volume.
Equipment
10 cm³ measuring cylinders, test tubes, spatulas, samples of four powdered metal oxides (e.g. copper oxide, manganese oxide), 5% hydrogen peroxide, test tube racks.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
Loading...