Terbium (Tb), element 65 – Learn Acer periodic table

Lanthanide, atomic number 65.

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. Terbium is never found in nature as a free element, but it is contained in many minerals, including cerite, gadolinite, monazite, xenotime and euxenite.

Symbol Tb. Atomic mass 158.925352 u. Group 3, period 6. Electron configuration [Xe] 4f9 6s2. Electrons per shell 2, 8, 18, 27, 8, 2. State at room temperature: Solid. Melting point 1355.8 °C, boiling point 3122.8 °C. Discovered by Carl Gustaf Mosander.

Element data from Wikipedia, CC BY-SA 3.0.

Terbium (Tb), element 65 – Learn Acer periodic table

Terbium

Facts