rutanium
Rutanium is a hypothetical chemical element with the symbol Ru and atomic number 160. It is located in the superactinide series, a theoretical extension of the periodic table beyond the actinides. As a superactinide, rutanium would be expected to possess electron configurations that involve the filling of the 5g subshell, a concept not observed in naturally occurring elements. Theoretical predictions suggest that rutanium, like other superheavy elements, would be highly radioactive and possess a very short half-life. Its chemical properties are largely unknown and are extrapolated based on periodic trends. Due to its extreme instability and the immense difficulty in synthesizing superheavy elements, rutanium has not been experimentally confirmed or discovered. Research into superheavy elements aims to explore the limits of nuclear stability and test theoretical models of atomic structure. The synthesis of elements beyond uranium typically requires particle accelerators to fuse lighter nuclei. The precise location and properties of rutanium are subject to ongoing theoretical investigation as scientists explore the potential existence and characteristics of elements in this extreme region of the periodic table.