Terbium Sputtering Targets (Tb)

Terbium is a silvery-white rare earth metal. It is malleable, ductile, and soft enough to be cut with a knife. It is relatively stable in the air than the earlier, more reactive lanthanides in the first half of the lanthanide series. Terbium exists in two crystal allotropes with a transformation temperature of 1289 ℃ between them. The 65 electrons of a terbium atom are arranged in the electron configuration [Xe]4f96s2. Usually, only three electrons can be removed before the nuclear charge becomes too great to allow further ionization, but in the case of terbium, the stability of the half-filled [Xe]4f7 configuration allows further ionization of a fourth electron in the presence of powerful oxidizing agents such as Fluorine gas.