Difference between revisions of "Flame Test"
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+ | :[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Flame tests, page 60, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR ''] | ||
+ | :[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Flame tests, pages 148, 272, 273, Gateway GCSE Chemistry, Oxford, OCR ''] |
Latest revision as of 08:09, 7 December 2019
Contents
Key Stage 4
Meaning
Flame Tests are an experiment which can be used to identify the metal elements in a metal compound.
About Flame Tests
- When a metal compound is heated by a flame it causes the electrons in the metal to gain energy and move to a higher Electron Orbital. When they electrons fall back down to their lower Electron Orbital some light is given off. Each metal produces different colours of light.
Metal Ion | Flame Colour |
Lithium | Red |
Sodium | Orange |
Potassium | Lilac (Purple) |
Calcium | Orange-red |
Barium | Brown-green |
Copper | Green-blue |
Lead | Blue |
Method
- Dip the end of an Inoculation Loop into concentrated Hydrochloric Acid.
- Place the end of the Inoculation Loop into the powdered metal compound.
- Hold the end of the Inoculation Loop in a roaring blue Bunsen Burner flame.
- Observe and record the colour of the flame.
References
AQA
- Flame tests, page 209, GCSE Chemistry, Hodder, AQA
- Flame tests, page 258, GCSE Chemistry, CGP, AQA
- Flame tests, page 89, GCSE Chemistry; The Revision Guide, CGP, AQA
- Flame tests, pages 186-187, GCSE Chemistry; Third Edition, Oxford University Press, AQA
- Flame tests, pages 263, 274-5, 284, GCSE Chemistry; Student Book, Collins, AQA
Edexcel
- Flame tests, page 194, GCSE Chemistry, Pearson, Edexcel
- Flame tests, page 95, GCSE Chemistry; The Revision Guide, CGP, Edexcel
- Flame tests, pages 274, 275, 278, GCSE Chemistry, CGP, Edexcel