What is the meaning of atomic number 3?

noun

  • A soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals.
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APAWordNet. (2010). atomic number 3. Retrieved September 21, 2026, from http://smartdefine.org/atomic_number_3/definitions/1258305
ChicagoWordNet. 2010. "atomic number 3" http://smartdefine.org/atomic_number_3/definitions/1258305 (accessed September 21, 2026).
HarvardWordNet 2010, atomic number 3, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/atomic_number_3/definitions/1258305>.
MLAWordNet. "atomic number 3" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/atomic_number_3/definitions/1258305>