Terbium is a chemical element with the symbol Tb and atomic number 65. It is a silvery-white
rare earth metal that is malleable, ductile and very hard. Terbium is never found
in nature as a free element, but it is contained in many minerals, including cerite,
gadolinite, monazite, xenotime and euxenite. - Terbium is a chemical element with
the symbol Tb and atomic number 65. It is a silvery-white rare earth metal that is
malleable, ductile and very hard. Terbium is never found in nature as a free element,
but it is contained in many minerals, including cerite, gadolinite, monazite, xenotime
and euxenite.
