alkylium
Alkylium is a hypothetical chemical element that has been proposed but not yet discovered or officially recognized by the scientific community. The name suggests it would be an alkali metal, belonging to Group 1 of the periodic table. Elements in this group are characterized by their single valence electron, making them highly reactive metals. If alkylium were to exist, it would likely follow the trends observed in the alkali metal series, meaning it would be softer, less dense, and more reactive than the alkali metals preceding it, such as francium.
Theoretical calculations and predictions suggest that elements beyond the current known periodic table might exhibit unusual