Idione, a fictional character from the Pokémon series, does not have any shells as it is not a shell-based creature. If you meant a specific Pokémon or organism that resembles "idione" or uses shells, please clarify, and I'd be happy to provide more information!
Curium has seven electron shells.
Yttrium has five electron shells.
Magnesium has three electron shells. The electron configuration is 2,8,2
Sulfur has three shells.
Mercury has 80 electrons which means there are 6 shells in a neutral atom of mercury.
idione solution.
I'm sure if you drink it, it will be.
Technetium has five electron shells.
Thallium has 6 electron shells.
Curium has seven electron shells.
Yttrium has five electron shells.
Thulium has 79 shells.
Hassium has seven electron shells.
Polonium has 6 electron shells.
Sodium, i believe has 3 shells.
Bromine has 4 energy shells.
Silicon has 3 energy shells.