copernicium
noun
co·per·nic·i·um
ˌkō-pər-ˈni-sē-əm 
: a short-lived artificially produced radioactive element that has 112 protons see Chemical Elements Table
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The last element officially added to the table was element 112, copernicium, in 2010, after a series of experiments beginning in 1996 demonstrated its existence.
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Veronique Greenwood, Discover Magazine, 4 June 2011
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Veronique Greenwood, Discover Magazine, 4 June 2011
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“Copernicium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/copernicium. Accessed 21 Jun. 2025.
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copernicium
noun
co·per·nic·i·um
ˌkō-pər-ˈnis-ē-əm
: a short-lived artificially produced radioactive element that has 112 protons see element
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