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Potassium Presentation

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Maggie Hennigan

on 10 October 2012

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Transcript of Potassium Presentation

By: Maggie Hennigan Potassium Facts About Potassium 1. Potassium is element number 19 on the periodic table, which means it has 19 protons. 2. Potassium is an alkali metal, which means it has a valence electron level of 1 and is highly reactive. 3. Because of its high reactivity, potassium is not found freely in nature. 4. Potassium is essential for all living things. 5. Potassium compounds are violet or purple when burned. Potassium Bohr Model Potassium was discovered in 1807 by a British scientist named Sir Humphrey Davy. He discovered it through isolation by electrolysis of very dry molten caustic potash. Potassium was the first metal of the time to be isolated by electrolysis. Discovery of Potassium Common Uses of Potassium Potassium has many uses in our everyday lives such as:
Medical purposes
Gunpowder Potassium Video Did you pay attention? What color are potassium compounds when burned? http://chemistry.about.com/od/elementfacts/a/10-Potassium-Facts.htm And for fun, here's an element song, sung by Sheldon from the Big Bang Theory. 6. Potassium is soft enough to be cut with a knife. 7. The name for potassium comes from the English word potash.
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