Promethium Plutonium Platinum Peotatinium
Radium Rhenum Ruthenium Radon
Plutonium Phosphorous Praesedymium Promethium
Phosphorous Plutonium Platinum Potassium
Radium Rhodium Rubidium Radon
Praesedymium Potassium Platinum Peotatinium
Potassium Praesedymium Plutonium Palladium
Rhodium Rubidium Radon Rhenum
Promethium Praesedymium Platinum Peotatinium