Terbium Pillows

Description: An iconic Terbium design. Terbium is a chemical element with symbol Tb and atomic number 65. It is a silvery-white rare earth metal that is malleable, ductile and soft enough to be cut with a knife. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. Brought to you by Periodic-Tees.com

Description: A dark square element box featuring the atomic symbol 'Tb' in large white font. Above 'Tb' are the numbers '158.922235' and '65'. To the right of 'Tb' are the charges '+4', '+3', and '+1'. Below 'Tb' is the text 'Terbium', '[Xe] 6s² 4f⁹', and 'Lanthanide'.