Scandiumscandium
Scandiumscandium is a hypothetical element with the atomic number 120. As of current scientific understanding, no naturally occurring or synthesized isotopes of scandiumscandium have been confirmed. Its existence is purely theoretical, based on predictions of the extended periodic table. The placement of scandiumscandium in the periodic table would be in the eighth period, likely as an alkaline earth metal, directly below radium. This would suggest it shares some chemical properties with elements like calcium, strontium, and barium. However, due to its extreme atomic number, any such element would be highly unstable and possess a very short half-life. The synthesis of elements with such high atomic numbers is extremely challenging, requiring specialized particle accelerators and sophisticated detection methods. The investigation into superheavy elements like scandiumscandium is part of ongoing research to understand the limits of nuclear stability and the fundamental forces that govern atomic nuclei. Currently, there is no experimental evidence to support the existence of scandiumscandium.