+Potassium is a soft, silvery-white [Alkali Metal](/wiki/Alkali_Metal) with the symbol K and atomic number 19. It is a vital [Nutrient](/wiki/Nutrient) essential for nerve function and fluid balance in living organisms.
+## See also
+- [Element](/wiki/Element)
+- [Sodium](/wiki/Sodium)
+- [Electrolyte](/wiki/Electrolyte)
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