65Tb
Element 65
Terbium
Lanthanides
Terbium is a chemical element with symbol Tb and atomic number 65.
Key data
- Atomic number
- 65
- Atomic mass
- 158.925 u
- Group / Period
- 3 / 6
- Block
- f-block
- Phase at STP
- Solid
- Density
- 8.23 g/cm³
- Melting point
- 1355.8 °C
- Boiling point
- 3122.8 °C
- Electron configuration
- [Xe] 4f9 6s2
Common uses
- •Green phosphors
- •Solid-state devices
- •Low-energy bulbs
Discovery
Year: 1843
Discovered by: Carl Gustaf Mosander
Frequently asked questions
What is the atomic number of Terbium?
Terbium has atomic number 65. Its symbol is Tb and its atomic mass is 158.925 u.
What category of element is Terbium?
Terbium is classified as lanthanides. It sits in group 3, period 6 of the periodic table.
What is Terbium used for?
Common uses of Terbium include: Green phosphors, Solid-state devices, Low-energy bulbs.
When was Terbium discovered?
Terbium was discovered in 1843 by Carl Gustaf Mosander.
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