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![Using the Periodic Table]()
Using the Periodic Table
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![Spectroscope]()
Spectroscope
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![Molecular model]()
Molecular model
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![Atom's Structure]()
Atom's Structure
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![Supernova]()
Supernova
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![Fireworks]()
Fireworks
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![Gold Ore]()
Gold Ore
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![Gold Jewellery]()
Gold Jewellery
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![Iron Ore]()
Iron Ore
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Teeth Braces
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![Swimming Pool]()
Swimming Pool
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![Magnesium]()
Magnesium
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![Alloy Wheels]()
Alloy Wheels
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![Fire]()
Fire
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![Explosion]()
Explosion
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![Gunpowder]()
Gunpowder
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![Fireworks]()
Fireworks
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![Dynamite]()
Dynamite
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The Structure of Metals
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Electrolysis of Lead Bromide
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Electrolysis of Lead Bromide (unlabelled)
Film info
Film summary
Potassium is one of the most unpredictable elements, a soft metal that is essential to life.Key facts
- Potassium is a soft metal.
- In our bodies potassium compounds help keep us healthy.
- Potassium compounds are vital for plant growth.
- Potassium oxidises rapidly in air and reacts explosively with water.
Transcript
Potassium
Potassium is a soft metal that can be cut with a knife.
It is silvery in colour, but oxidises rapidly on contact with air.
On contact with water, potassium reacts explosively, making hydrogen gas and a strong alkaline solution of potassium hydroxide.
The reaction is strongly exothermic, releasing heat, and so ...
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