Describe four properties of transition elements that distinguish them from Group I metals.
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Model answer (4 marks)
1. Transition elements have higher melting points than Group I metals.
2. Transition elements are harder and more dense than Group I metals.
3. Transition elements form coloured compounds or ions.
4. Transition elements or their compounds can act as catalysts.
2. Transition elements are harder and more dense than Group I metals.
3. Transition elements form coloured compounds or ions.
4. Transition elements or their compounds can act as catalysts.
Examiner tips
- Use the word ‘higher’ for melting points, ‘harder’ and ‘more dense’ for physical properties, mention ‘coloured’ for compounds, and state ‘can act as catalysts’ for catalytic activity.
- Keep each point brief and use the exact terminology from the mark scheme.
Mark scheme (4 marks)
- Transition elements have higher melting points than Group I metals
- Transition elements are harder / more dense than Group I metals
- Transition elements form coloured compounds / ions
- Transition elements can act as catalysts / their compounds can act as catalysts
Key terms in this question
transition elements · Group I metals
Related
- All Cambridge International IGCSE Chemistry (0620) revision notes →
- How to answer a "Describe" question →
- Decode the mark scheme abbreviations →