Selenium Samarium Scandium Strontium
Selenium Silicon Silver Sulphur
Samarium Silver Selenium Sulphur
Silicon Sodium Silver Scandium
Scandium Silicon Sulphur Strontium
Silver Neptunium Sodium Nickel
Rhodium Ruthenium Rhenum Rubidium
Silver Gold Argon Tin
Uranium Rhenium Radon Radium
Rhodium Radium Rubidium Ruthenium