Facts about Thorium
Facts about Thorium - Element included on the Periodic Table
Facts about the Definition of the Element Thorium
The Element Thorium is defined as...
A radioactive metallic element that occurs combined in minerals and is usually associated with rare earths.
Interesting Facts about the Origin and Meaning of the element name Thorium
What are the origins of the word Thorium ?
Thorium was named after Thor, the Norse God of War.
Facts about the Classification of the Element Thorium
Thorium classified as an element in the Actinide 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 of the Lanthanide and Actinide series. Most of the elements in the Actinide series are synthetic or man-made.
Brief Facts about the Discovery and History of the Element Thorium
Thorium was discovered by Jons Jacob Berzelius in Sweden in 1828.
Occurrence of the element Thorium in the Atmosphere
Monazite is the primary source of thorium
Common Uses of Thorium
The Properties of the Element Thorium
Name of Element : Thorium
Symbol of Element : Th
Atomic Number of Thorium : 90
Atomic Mass: 232.0381 amu
Melting Point: 1750.0 °C - 2023.15 °K
Boiling Point: 4790.0 °C - 5063.15 °K
Number of Protons/Electrons in Thorium : 90
Number of Neutrons in Thorium : 142
Crystal Structure: Cubic
Density @ 293 K: 11.72 g/cm3
Color of Thorium : silvery
The element Thorium and the Periodic Table
Find out more facts about Thorium on the Periodic Table which arranges every 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 Thorium for additional facts and info and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc of Thorium with any other element. An invaluable source for more interesting facts and information about the Thorium element and as a Chemistry reference guide.
Facts and Info about the element Argon - 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 which includes the Thorium element. The famous Russian Scientist, Dimitri Mendeleev, perceived the correct classification method of "the periodic table" for the 65 elements which were known in his time. Thorium was discovered by Jons Jacob Berzelius in Sweden in 1828. The Standardised Periodic Table 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 Thorium is just one element that can be found.
Facts and Info about the Element Thorium
Information Facts about the Thorium Element