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Definition of Roentgenium
1. Noun. A radioactive transuranic element.
Definition of Roentgenium
1. Noun. A transuranic chemical element (''symbol'' Rg) with atomic number 111. ¹
¹ Source: wiktionary.com
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1. Noun. A radioactive transuranic element.
1. Noun. A transuranic chemical element (''symbol'' Rg) with atomic number 111. ¹
¹ Source: wiktionary.com