We elaborate the uses of Thorium and atomic properties with characteristics. Thorium is a silvery-white chemical element with atomic number 90. Its symbol is Th and it belongs to the group of actinides and its normal state in nature is solid. Thorium is located at position 90 on the periodic table.
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On this page you can discover the chemical properties of thorium and information about thorium and other elements of the periodic table such as cerium, praseodymium, neodymium or promethium. You will also learn what thorium is for and you will know its uses through its properties associated with thorium such as its atomic number or the usual state in which thorium can be found.
You can see qualities of thorium such as its melting and boiling point, its magnetic properties or what its chemical symbol is. In addition, here you will find information about its atomic properties such as the distribution of electrons in thorium atoms and other properties.
For some elements, part of this information is unknown. In these cases we show the properties attributed to them.
Thorium properties
Thorium is part of the group of actinides. Actinides that have a higher atomic number cannot be found in nature and their life span is shorter. All isotopes in the actinide group, including thorium, are radioactive.
The state of thorium in its natural form is solid. Thorium is a silvery-white chemical element and belongs to the group of actinides. Thorium’s atomic number is 90. Thorium’s chemical symbol is Th. Thorium’s melting point is 2028 degrees Kelvin or 1755.85 degrees Celsius, or degrees Centigrade. Thorium’s boiling point is 5061 degrees Kelvin or 4788.85 degrees Celsius or degrees Celsius.
Atomic properties of thorium
The atomic mass of an element is determined by the total mass of neutrons and protons that can be found in a single atom belonging to this element. Regarding its position within the periodic table of elements, it can be found in period 7. Thorium has an atomic mass of 232.0381 u.
The electron configuration of thorium is [Rn] 6d27s2. The electronic configuration of the elements determines the way in which the electrons are structured in the atoms of an element. The mean radius of thorium is 180 pm.
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Thorium characteristics
Below you can see a table that shows the main characteristics that thorium has.
Thorium | ||
---|---|---|
Chemical symbol | Th | |
Atomic number | 90 | |
Period | 7 | |
Appearance | silvery white | |
Block | F | |
Density | 11724 kg / m3 | |
Atomic mass | 232.0381 u | |
Medium radius | 180 pm | |
Electronic configuration | [Rn] 6d27s2 | |
Oxidation states | 4 weak base | |
Crystal structure | face-centered cubic | |
State | solid | |
Melting point | 2028K | |
Boiling point | 5061K | |
Heat of fusion | 16.1 kJ / mol | |
Electronegativity | 1.3 (Pauling) | |
Specific heat | 120 J / (kg K) | |
Electric conductivity | 6.53 × 106 m-1 Ω-1 | |
Thermal conductivity | 54 W / (m K) |
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