Because if you can't Helium or Curium, You'd Barium!
Dill Rye
That's a salt!
Barium
Because, if you can't 'helium' or 'curium', you 'BARIUM'!
HeHe
Because if you can't Helium or Curium, you Barium. (Heard it from Heimerdinger, League of Legends)