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19 August 2018, Sunday
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  1. a soft, silvery white, very reactive element of the alkali metal group, commonly found combined in minerals. The metal has few uses other than being alloyed with sodium as a coolant in nuclear reactors, although its compounds are widely used, especially in fertilizers.
    (nupab123, November 19, 2008, 11:14 pm)
  2. potassium belongs in the alkali metal group. it symbols is K. potassium plays an important role essentials to our body.
    (froi, December 14, 2008, 5:58 pm)

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