Terbium - Element Properties and Periodic Table Information

Terbium - An element from the Periodic Table based on the IOUPAC 1985 standard

Chemical Elements

Periodic Table

Definition of the Terbium Element
A soft, silvery-gray metallic rare-earth element, used in x-ray and color television tubes.

Origin / Meaning of the name Terbium
Carl Gustaf Mosander was able to separate gadolinite into three materials, which he named yttria, erbia and terbia.

Classification of the Terbium Element
Terbium classified as an element in the Lanthanide series as one of the "Rare Earth Elements" which can located in Group 3 elements of the Periodic Table and in the 6th and 7th periods. The Rare Earth Elements are divided into the Lanthanide and Actinide series. The elements in the Lanthanide series closely resemble lanthanum, and one another, in their chemical and physical properties. Their compounds are used as catalysts in the production of petroleum and synthetic products.

Facts about the Discovery and History of the Terbium Element
Terbium was discovered by Carl Gustaf Mosander in Sweden in 1843

Occurrence the Terbium Element
Contained in many minerals, including cerite, gadolinite, monazite

Associated Uses of Terbium
Used to dope Calcium fluoride, calcium tungstate and Strontium molybdate
Used in alloys
Electronic devices
Fluorescent lamps
Color TV tubes
 

The Properties of the Terbium Element
Name of Element : Terbium
Symbol of Element: Tb
Atomic Number: 65
Atomic Mass: 158.92534 amu
Melting Point: 1360.0 °C - 1633.15 °K
Boiling Point: 3041.0 °C - 3314.15 °K
Number of Protons/Electrons: 65
Number of Neutrons: 94
Crystal Structure: Hexagonal
Density @ 293 K: 8.27 g/cm3
Color: silvery-gray

Terbium and the Periodic Table
Check out Terbium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the periodic law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Terbium for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide.

Terbium - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri  Mendeleev knew in his day but still all fitting into his concept of  the "Periodic Table" in which Terbium is just one element that can be found.
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The Element Terbium

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