Elementidel
Elementidel is a hypothetical chemical element proposed in discussions of an extended periodic table. In many models, it would have an atomic number in the range of 170 to 210 and would lie in the uppermost regions of the periodic table, potentially in the eighth or ninth period. As with other superheavy elements, its predicted position is sensitive to relativistic effects on electron structure.
The name elementidel combines “element” with a conventional suffix used for hypothetical elements; common speculative symbols
Predicted properties are model-dependent. Many calculations predict extreme instability with lifetimes very short; relativistic effects could
If synthesized, elementidel would likely be produced by heavy-ion fusion experiments using very heavy targets and
The concept of elementidel serves as a testbed for theories of the periodic table, nuclear stability, and