Elements 31-40
Periodic Table
Gallium
Gallium atom
Gallium Blueray Laser
Germanium
Germanium Atom
Germanium Infrared Lens
Arsenic
Arsenic atom
Paris Green
Selenium
Selenium atom
Anti-dandruff Shampoo
Bromine
Bromine atom
Flame retardant pajamas
Krypton
Krypton atom
Mounted Arc Tube
Rubidium
Rubidium atom
Time Standard Cell
Strontium
Strontium atom
Strontium Toothpaste
Yttrium
Yttrium atom
Hallow Cathode Lamp
Zirconium
Zirconium atom
Cubic Zirconia – fake diamond