What is the meaning of atomic number 20?

noun

  • A white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). atomic number 20. Retrieved September 20, 2026, from http://smartdefine.org/atomic_number_20/definitions/1258295
ChicagoWordNet. 2010. "atomic number 20" http://smartdefine.org/atomic_number_20/definitions/1258295 (accessed September 20, 2026).
HarvardWordNet 2010, atomic number 20, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/atomic_number_20/definitions/1258295>.
MLAWordNet. "atomic number 20" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/atomic_number_20/definitions/1258295>