Terbium is a lanthanide valued for green phosphors and magnetostrictive alloys that change shape in magnetic fields.
Atomic number
65
Category
Lanthanide
Period
6
Group
f-block
State
Solid
Fun facts about Terbium
Terbium emission supplies bright green in many phosphor systems.
Terbium-containing alloys can expand or contract under magnetisation.
It usually occurs mixed with other rare-earth minerals.
Common uses of Terbium
Green phosphors
Magnetostrictive actuators
Specialised permanent magnets
Where Terbium sits in the periodic table
Terbium belongs to the lanthanide series in period 6 and the f-block of the periodic table. Under the conditions represented in this reference, its state is solid.
Quick chemistry revision
For quick revision, pair the symbol Tb with atomic number 65 and the listed atomic mass 158.93. The summary, facts, and uses above keep those element properties together in one reference.