1. Bria Bowie By: Period:6

2. Basic Information Symbol: K Atomic Number:19 Atomic Mass:39.10 Boiling Point: 1032K Melting Point: 336.53K Density: 0.89 grams Protons: 19 Electrons:19 Neutrons: 20 Valence Electrons: 1

3. Element Facts Abundant physical state: solid Configuration:1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 Element group: 1 Element period: 4 Usual charge: +1 Color of Element: White Odor of Element: odorless

4. The History of Potassium Toxicity of Element: Diarrhea, nausea, vomiting, irregular heart breathing Common isotopes: K-40 and K-41 Abundance: The 7 th most abundant element. Makes up 24% of the earth’s crust Naturally Occurs: in many minerals, brines, and ocean water Common Uses: fertilizer, essential for plant growth, used in glass

5. The Discovery Who discovered the element: Sir Humphry Davy When it was discovered: 1807 It got its name from Potash. Potash is a Dutch term describing how the substance was formed from wood ashes. Interesting Fact: This was the first Akali metal that was isolated by electrolysis.

6. Works Cited Potassium Facts. http://chemistry.about.com/od/elementfacts/a/pota ssium.htm. Anne Marie. 2010.Web. 5/27/10 http://chemistry.about.com/od/elementfacts/a/pota ssium.htm. Anne Marie. 2010.Web Facts about Potassium. http://www.facts- about.org.uk/science-element-potassium.htm. NP ND. 5/25/10http://www.facts- about.org.uk/science-element-potassium.htm Fun Facts about Potassium. http://www.buzzle.com/articles/fun-facts-about- potassium.html. NP. 2010.Web. 5/24/10 http://www.buzzle.com/articles/fun-facts-about- potassium.html. NP. 2010.Web