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'''Roentgenium''' is a [[synthetic]] chemical [[element]] with the symbol Rg and atomic number 111. It is not found in nature because it is extremely [[radioactive]].<ref>https://www.rsc.org/periodic-table/element/111/roentgenium</ref>
'''Roentgenium''' is a [[synthetic]] chemical [[element]] with the symbol Rg and atomic number 111. It is not found in nature because it is extremely [[radioactive]].<ref>https://www.rsc.org/periodic-table/element/111/roentgenium</ref>
In the [[periodic table]], it is a d-block transactinide element, which basically is quite significant. It specifically is a member of the seventh period and mostly is placed in the group 11 elements, although no chemical experiments have been carried out to literally confirm that it behaves as the heavier homologue to [[gold]] in group 11 as the ninth member of the 6d series of [[transition metal]]s. Roentgenium essentially is calculated to have similar properties to its lighter homologues, [[copper]], [[silver]], and gold, although it may show some differences from them, or so they thought. Roentgenium is thought to specifically be a solid at room temperature and to have a metallic appearance in its regular state.<ref>https://www.britannica.com/science/roentgenium</ref><ref>https://www.vedantu.com/chemistry/roentgenium</ref><ref>https://pubchem.ncbi.nlm.nih.gov/element/Roentgenium</ref>
==References==
==References==
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