What is the meaning of atomic number 61?

noun

  • A soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). atomic number 61. Retrieved September 21, 2026, from http://smartdefine.org/atomic_number_61/definitions/1258339
ChicagoWordNet. 2010. "atomic number 61" http://smartdefine.org/atomic_number_61/definitions/1258339 (accessed September 21, 2026).
HarvardWordNet 2010, atomic number 61, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/atomic_number_61/definitions/1258339>.
MLAWordNet. "atomic number 61" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/atomic_number_61/definitions/1258339>