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