POTASSIUM

Vinya 7.4

POTASSIUM

Atomic Number: 19

Symbol: K

Atomic Weight: 39.0983

POTASSIUM

Melting Point: 63.25C

Boiling Point: 760C

DESCRIPTION Potassium is a:

Light – soft

Silvery white color

It reacts violently in water

ABOUT POTASSIUM Potassium is not found in free nature.

It was the first metal isolated by electrolysis

Potassium (Potash) is mined in Germany, Utah, California, and New Mexico

It is an alkali metal

ABOUT POTASSIUM

Do we need potassium?

We need Potassium for our body, Potassium is responsible for our heart beating and the

movement of our muscle. It is for fluid balance in our body.

ABOUT POTASSIUM

The minimum amount of potassium we should consume per day is 2000 mg

This can easily be obtained by eating vegetables and fruits

Do not consume Potassium from salt such as Potassium Chloride, it can be dangerous for our life

These are some food with high amounts of potassium:

Bananas Milk Avocados Oranges Fish Dry Beans Peanut Butter Cantaloupe Mushrooms Spinach Potatoes Watermelon

http://startupblog.files.wordpress.com/2009/04/banana1.jpg

DISCOVERY

Potassium was discovered by a British scientist, Sir Humphry Davy in 1807.

He describe Potassium as, when it was thrown into water, "skimmed about excitedly with a hissing sound, and soon burned with a

lovely lavender light.“

http://www.edu.xunta.es/contidos/premios/p2004/b/viaxar/images/davy.jpg

PICTURE GALLERY

http://www.liboxgoa.com/images/Potassium-permanganate-sample-full.jpg

http://image18.webshots.com/18/6/30/72/194163072zjzXGl_ph.jpg

http://upload.wikimedia.org/wikipedia/commons/6/66/PotassiumFeldsparUSGOV.jpg

USES OF POTASSIUM

The Common use of Potassium:

Fertelizer Glass Soap Substitute for table salt Medical Fertilizers Gunpowder Potassium nitrate, chloride &

permanganatefruits and vegetables.

http://www.icmag.com/gallery/data/500/1134potassium-deficiency1.jpg

FUN FACTS The only metal that is lighter than Potassium

is Lithium

http://z.about.com/d/chemistry/1/0/f/3/1/Lithium_paraffin.jpg

OTHER FACTS

Potassium has a lot of different types:

Potassium Chlorate - is used to make fireworks and explosives

Potassium Nitrate – is the main component in gun powder

Potassium Bromide - has photographic uses.

Potassium Iodide is used to make medicine

BIBLIOGRAPHY http://www.buzzle.com/img/articleImages/266654-1072-2.jpg

“Major uses of potassium.” 25 April 2010. http://www.bishops.k12.nf.ca/science/chem/potass/untitled10.html

“What is potassium and its uses.” 25 April 2010. .http://www.essortment.com/all/whatispotassiu_rrjp.htm

http://wordnetweb.princeton.edu/perl/webwn?s=potassium 25 April 2010

“Facts about Potassium.” 25 April 2010 . http://www.facts-about.org.uk/science-element-potassium.htm

Helmenstine, Anne Marie. “Potassium Facts.” About.com. 25 April 2010 http://chemistry.about.com/od/elementfacts/a/potassium.htm

“Potassium.” 25 April 2010. http://www.ucc.ie/academic/chem/dolchem/html/elem/elem019.html