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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
    887 bytes (52 words) - 13:52, 5 April 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
    30 KB (3,545 words) - 01:28, 28 April 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
    98 KB (10,967 words) - 01:31, 22 April 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
    104 KB (14,003 words) - 02:55, 5 June 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
    122 KB (13,402 words) - 12:23, 21 May 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
    64 KB (7,842 words) - 23:36, 10 April 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
    20 KB (1,952 words) - 02:37, 27 June 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
    10 KB (894 words) - 23:47, 23 April 2016
  • and regolith exposed at Earth's surface is dependent on its calcium, potassium, and chloride content and can be expressed by the equation
    42 KB (5,393 words) - 02:56, 5 June 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
    12 KB (994 words) - 00:44, 24 April 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
    29 KB (3,345 words) - 17:03, 27 April 2016
  • structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds
    48 KB (5,579 words) - 23:58, 12 April 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
    114 KB (12,080 words) - 02:55, 5 June 2016
  • and regolith exposed at Earth's surface is dependent on its calcium, potassium, and chloride content and can be expressed by the equation
    101 KB (11,996 words) - 23:28, 7 June 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
    104 KB (9,137 words) - 02:46, 21 April 2016
  • 2. Yes or No, Radium is an actinide element. 3. Carnotite is a potassium uranium 4. Yes or No, Lead is an actinide element. 5. Autunite
    7 KB (614 words) - 04:04, 21 April 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
    141 KB (17,621 words) - 02:48, 5 June 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
    10 KB (912 words) - 02:20, 21 April 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
    12 KB (1,041 words) - 02:36, 21 April 2016

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