rubidiumcertaium
Rubidiumcertaium is a hypothetical element with the symbol RbCe and atomic number 137. It is not a naturally occurring element and has not been synthesized in a laboratory. Theoretical predictions suggest that if rubidiumcertaium were to exist, it would be a highly unstable superheavy element. Its position on the periodic table would place it in the alkali metal group, beneath francium.
The theoretical properties of rubidiumcertaium are largely extrapolated from trends in its group and from models
The existence of elements beyond the current periodic table, including superheavy elements like rubidiumcertaium, is a
---