there is no confirmed element with the atomic number 120 that has been officially discovered or named. The heaviest element that has been officially recognized and named is oganesson (Og) with atomic number 118.
It's important to note that the discovery and synthesis of new elements in the periodic table is an ongoing area of scientific research. The synthesis of superheavy elements beyond atomic number 118 is extremely challenging due to their instability and short lifetimes. Scientists continue to explore and conduct experiments to create and study these elements, but their existence and properties are still subject to further investigation and confirmation. Therefore, any information beyond atomic number 118 would be speculative and should be verified with the latest scientific updates.