Potassium-40 (40K) is a radioactive isotope of potassium which has a long half-life of 1.25 billion years. It makes up about 0.012% (120 ppm) of the total...

Potassium is a chemical element; it has symbol K (from Neo-Latin kalium) and atomic number 19. It is a silvery white metal that is soft enough to easily...

occurring radioactive isotopes, particularly potassium-40 (40K), one of several naturally occurring isotopes of potassium. One BED is often correlated to 10−7...

Potassium chloride (KCl, or potassium salt) is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous...

transition: 40 K has a nuclear spin of 4, while both of its decay daughters are even–even isotopes with spins of 0. 40 K occurs in natural potassium in sufficient...

Hypokalemia is a low level of potassium (K+) in the blood serum. Mild low potassium does not typically cause symptoms. Symptoms may include feeling tired...

induced by a cosmic ray or from one in a hundred thousand decays of potassium-40, a rare isotope, 0.012% of that element on earth. Positron emission should...

Nearly all argon in Earth's atmosphere is radiogenic argon-40, derived from the decay of potassium-40 in Earth's crust. In the universe, argon-36 is by far...

also included are naturally occurring long-lived radioisotopes, such as potassium-40. Radioactivity was discovered in 1896 by scientists Henri Becquerel and...

fermionic condensate was created by a team led by Deborah S. Jin using potassium-40 atoms at the University of Colorado Boulder in 2003. Fermionic condensates...

measured at 225,000 becquerels. As a comparison, the roughly 0.0169 g of potassium-40 present in a typical human body produces approximately 4,400 becquerels...

Potassium bitartrate, also known as potassium hydrogen tartrate, with formula KC4H5O6, is a chemical compound with a number of uses. It is the potassium...

such as alpha or beta decay. An example is the natural decay of potassium-40 to argon-40, which forms most of the argon in the air. Also on Earth, natural...

Hyperkalemia is an elevated level of potassium (K+) in the blood. Normal potassium levels are between 3.5 and 5.0 mmol/L (3.5 and 5.0 mEq/L) with levels...

Potassium nitrate is a chemical compound with a sharp, salty, bitter taste and the chemical formula KNO 3. It is an ionic salt of potassium ions K+ and...

typical human body contains roughly 0.1 μCi (14 mg) of naturally occurring potassium-40. A human body containing 16 kg (35 lb) of carbon (see Composition of...

is potassium–argon dating (K–Ar dating). Potassium-40 is a radioactive isotope of potassium that decays into argon-40. The half-life of potassium-40 is...

as it originally was because of its 4.5 billion year half-life, and potassium-40 (half-life 1.25 billion years) is only at about 8% of original activity...

Acesulfame potassium (UK: /æsɪˈsʌlfeɪm/, US: /ˌeɪsiːˈsʌlfeɪm/ AY-see-SUL-faym or /ˌæsəˈsʌlfeɪm/), also known as acesulfame K (K is the symbol for potassium) or...

potassium-40, a long-lived isotope of potassium which occurs as a primordial isotope of potassium. Even though it is a small percentage of potassium (0...

Potassium chloride, also known as potassium salt, is used as a medication to treat and prevent low blood potassium. Low blood potassium may occur due...

has found that potassium is strongly siderophile when dealing with temperatures associated with core-accretion, and thus potassium-40 could have provided...

body counting can measure the amount of potassium 40 (40K) in the body, a quantity called total body potassium (TBK). This can be used to estimate fat-free...

Potassium oxide (K2O) is an ionic compound of potassium and oxygen. It is a base. This pale yellow solid is the simplest oxide of potassium. It is a highly...

Potassium permanganate is an inorganic compound with the chemical formula KMnO4. It is a purplish-black crystalline salt, that dissolves in water as K+...

Potassium alum, potash alum, or potassium aluminium sulfate is a chemical compound first found mentioned under various Sanskrit names in Ayurvedic medicinal...

one banana. Bananas contain potassium. Natural potassium consists of 0.0117% of the radioactive isotope 40K (potassium-40) and has a specific activity...

1.3% by mass) of the Earth's atmosphere due to decay of radioactive potassium-40. Pierre Janssen and Joseph Norman Lockyer had discovered a new element...

Granite is a natural source of radiation, like most natural stones. Potassium-40 is a radioactive isotope of weak emission, and a constituent of alkali...

dating of rocks, groundwater tracer Potassium-40 19 21 1.24×109 y β−, EC 1330 /1505 Primordial used for potassium-argon dating, source of atmospheric...