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You can find the information on the following website 

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You can find the information on the following website 

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https://en.wikipedia.org/wiki/Caesium#History

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Its used in fertilizers, as a salt substitute and to produce other chemicals.

It is used to make soaps, detergents and drains cleaners.

Potassium is crucial to heart function and plays a key role in skeletal and smooth muscle contraction, making it important for normal digestive and muscular function.

It is used as a heat transfer medium in some types of nuclear rectors.

The greatest demand for potassium compounds is in fertilisers. Many other potassium salts are of great importance, including the nitrate, carbonate, chloride, bromide, cyanide and sulfate. Potassium carbonate is used in the manufacture of glass. Potassium hydroxide is used to make detergent and liquid soap. Potassium chloride is used in pharmaceuticals and saline drips.

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PHYSICAL PROPERTIES  PRESENT IN POTASSIUM

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PHYSICAL PROPERTIES  PRESENT IN POTASSIUM

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- Melting point
-Boiling point
- Density.
-Grams per cubic centimeter

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CHEMICAL PROPERTIES THAT ARE PRESENT IN POTASSIUM

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CHEMICAL PROPERTIES THAT ARE PRESENT IN POTASSIUM

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- Energy of first ionisation
- Isotopes
- Electronic shell
- Ionic radius

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Potassium was first isolated by Sir Humphry  Davy in 1807 through the electrolysis of molten caustic potash (KOH). Davy used the same method to isolate sodium

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(K)-  symbol
,(19) - atomic number,
(39.0983) - atomic weight.