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