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