Potassium

Potassium is a chemical element; it has symbol K (from Neo-Latin ) and atomic number19. It is a silvery white metal that is soft enough to easily cut with a knife. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. It was first isolated from potash, the ashes of plants, from which its name derives. In the periodic table, potassium is one of the alkali metals, all of which have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge (which combines with ani

British chemist

Hyperkalemia is an elevated level of potassium (K+) in the blood. Normal potassium levels are between 3.5 and 5.0mmol/L (3.5 and 5.0mEq/L) with levels above 5.5mmol/L defined as hyperkalemia. Typically hyperkalemia does not cause symptoms. Occasionally when severe it can cause palpitations, muscle pain, muscle weakness, or numbness. Hyperkalemia can cause an abnormal heart rhythm which can result in cardiac arrest and death.

thumb|Polycrystalline potash, with a penny (United States coin)|U.S. penny for reference. (The coin is in diameter and copper in color.)

radiometric dating method

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chemical compound

Patiromer, sold under the brand name Veltassa, is a medication used to treat high blood potassium. It is taken by mouth. It works by binding potassium in the GI tract.

type of battery

Plant disorder

Use of Potassium by organisms