Flame Tests
Chemistry: Edexcel IGCSE, topic 13.2.1
Flame Tests
Some metal ions can be identified using flame tests. The following positive metal ions all produce a characteristic flame colour when burned:
Lithium (Li+)
- Crimson flame.
Sodium (Na+)
- Yellow flame.
Potassium (K+)
- Lilac flame.
Calcium (Ca2+)
- Orange-red flame.
Copper (Cu2+)
- Blue-green flame.
Test yourself on Flame Tests
Which is the correct flame colour for each metal ion?
Why is it problematic for interpreting the results of a flame test if a sample is made up of multiple ions?
Which is the correct charge for the following metal ions?