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  • Potassium was discovered by Sir Humphrey Davy in 1807. This alkali metal was the first metal that was isolated by electrolysis. The name comes from the
    832 bytes (34 words) - 00:58, 3 February 2016
  • temperatures) are colored magenta because of absorption by sodium and potassium atoms of light in the green portion of the spectrum." The "earliest known
    33 KB (3,819 words) - 02:29, 1 February 2016
  • temperatures) are colored magenta because of absorption by sodium and potassium atoms of light in the green portion of the spectrum." "The star on the left
    100 KB (11,205 words) - 03:14, 1 February 2016
  • billion and 14 billion years, respectively. About one in every thousand potassium atoms is radioactive." "The heat generated in the core turns the iron into
    107 KB (13,889 words) - 04:25, 3 February 2016
  • temperatures) are colored magenta because of absorption by sodium and potassium atoms of light in the green portion of the spectrum." "2MASS J10475385+2124234
    121 KB (13,209 words) - 23:22, 30 January 2016
  • billion and 14 billion years, respectively. About one in every thousand potassium atoms is radioactive." "The heat generated in the core turns the iron into
    66 KB (7,944 words) - 02:31, 1 February 2016
  • occurring radioactive isotopes are potassium-40 (see Potassium), thorium-232 (see Thorium), and uranium-238 (see Uranium). Atoms of these isotopes last, on average
    92 KB (15,545 words) - 18:43, 10 August 2014
  • However, a 14C atom is in the genetic information of about half the cells, while potassium is not a component of DNA. The decay of a 14C atom inside DNA in
    23 KB (2,136 words) - 04:00, 30 January 2016
  • negative muons) of 36Cl due to potassium and calcium, respectively; and are the elemental concentrations of potassium and calcium, respectively; and
    44 KB (4,573 words) - 04:00, 30 January 2016
  • percent H2O. While potassium does not occur on the surface of the Earth as native potassium, in abernathyite, the atom of potassium links to oxygens from
    13 KB (1,216 words) - 02:33, 1 February 2016
  • nuclei of atoms may qualify as a form of subatomic astronomy. Def. "particles that are constituents of the atom, or are smaller than an atom; such as proton
    31 KB (3,294 words) - 03:17, 1 February 2016
  • elements. For example, kaolinite is Al2Si2O5(OH)4. If aluminum (Al) at two atoms per molecular unit were the most numerous element, kaolinite would be an
    15 KB (1,273 words) - 02:37, 1 February 2016
  • structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds
    49 KB (5,589 words) - 00:51, 1 February 2016
  • However, a 14C atom is in the genetic information of about half the cells, while potassium is not a component of DNA. The decay of a 14C atom inside DNA in
    117 KB (11,991 words) - 03:41, 30 January 2016
  • However, a 14C atom is in the genetic information of about half the cells, while potassium is not a component of DNA. The decay of a 14C atom inside DNA in
    144 KB (16,074 words) - 00:15, 1 February 2016
  • negative muons) of 36Cl due to potassium and calcium, respectively; and are the elemental concentrations of potassium and calcium, respectively; and
    102 KB (11,835 words) - 03:13, 1 February 2016
  • Periodic Table. In addition to the true metals: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr), hydrogen (H) is usually
    107 KB (9,416 words) - 02:37, 1 February 2016
  • negative muons) of 36Cl due to potassium and calcium, respectively; and are the elemental concentrations of potassium and calcium, respectively; and
    100 KB (12,375 words) - 03:12, 1 February 2016
  • elements of the periodic table, including silicon, oxygen, iron, magnesium, potassium, aluminum, calcium, sulfur, and carbon." "[T]he chemical element thorium
    100 KB (10,943 words) - 03:04, 1 February 2016
  • 11. Yes or No, Radium is an actinide element. 12. Carnotite is a potassium uranium 13. Yes or No, Lead is an actinide element. 14. Autunite
    13 KB (1,191 words) - 02:36, 1 February 2016

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