Difference between revisions of "Flame Test"
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| style="height:20px; width:200px; text-align:center;" |'''Metal Compound''' | | style="height:20px; width:200px; text-align:center;" |'''Metal Compound''' | ||
| + | | style="height:20px; width:200px; text-align:center;" |'''Flame Colour''' | ||
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| style="height:20px; width:200px; text-align:center;" |Lithium | | style="height:20px; width:200px; text-align:center;" |Lithium | ||
| + | | style="height:20px; width:200px; text-align:center;" |Red | ||
| + | |- | ||
| style="height:20px; width:200px; text-align:center;" |Sodium | | style="height:20px; width:200px; text-align:center;" |Sodium | ||
| + | | style="height:20px; width:200px; text-align:center;" |Orange | ||
| + | |- | ||
| style="height:20px; width:200px; text-align:center;" |Potassium | | style="height:20px; width:200px; text-align:center;" |Potassium | ||
| + | | style="height:20px; width:200px; text-align:center;" |Lilac (Purple) | ||
| + | |- | ||
| style="height:20px; width:200px; text-align:center;" |Calcium | | style="height:20px; width:200px; text-align:center;" |Calcium | ||
| + | | style="height:20px; width:200px; text-align:center;" |Orange-red | ||
| + | |- | ||
| style="height:20px; width:200px; text-align:center;" |Barium | | style="height:20px; width:200px; text-align:center;" |Barium | ||
| + | | style="height:20px; width:200px; text-align:center;" |Brown-green | ||
| + | |- | ||
| style="height:20px; width:200px; text-align:center;" |Copper | | style="height:20px; width:200px; text-align:center;" |Copper | ||
| + | | style="height:20px; width:200px; text-align:center;" |Green-blue | ||
| + | |- | ||
| style="height:20px; width:200px; text-align:center;" |Lead | | style="height:20px; width:200px; text-align:center;" |Lead | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
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| style="height:20px; width:200px; text-align:center;" |Blue | | style="height:20px; width:200px; text-align:center;" |Blue | ||
|} | |} | ||
Revision as of 12:24, 24 January 2019
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 Compound | 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.