We elaborate the uses of Promethium and atomic properties with characteristics. Promethium is a chemical element with a metallic appearance with atomic number 61. Its symbol is Pm and it belongs to the group of lanthanides and its normal state in nature is solid. Promethium is located at position 61 on the periodic table.
On this page you can discover the chemical properties of Promethium and information about Promethium and other elements of the periodic table such as Thorium, Protactinium, Neptunium or Plutonium. You will also learn what the promise is for and you will know what its uses through its properties associated with the promise as its atomic number or the usual state in which the promise can be found.
You can see qualities of the promethium such as its melting and boiling point, its magnetic properties or what its chemical symbol is. Also, here you will find information about its atomic properties such as the distribution of electrons in the promethium atoms and other properties.
For some elements, part of this information is unknown. In these cases we show the properties attributed to them.
The promise is part of the group of lanthanides. Lanthanides are also called rare earths since they are commonly presented as oxides. Together with the actinides, the lanthanides form the internal transition elements.
The state of promethium in its natural form is solid. Promethium is a chemical element with a metallic appearance and belongs to the group of lanthanides. The atomic number of Promethium is 61. The chemical symbol for Promethium is Pm. The melting point of promethium is 1,373 degrees Kelvin or 1,100.85 degrees Celsius or degrees Celsius. The boiling point of promethium is 3273 degrees Kelvin or 3000.85 degrees Celsius or degrees Celsius.
Atomic Properties of Promethium
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 6. Promethium has an atomic mass of 1.5 u.
The electron configuration of the promethium is [Xe] 4f56s2. 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 the promethium is 185 pm and its atomic radius or Bohr radius is 205 pm. Promethium has a total of 61 electrons whose distribution is as follows: In the first shell it has 2 electrons, in the second it has 8 electrons, in its third shell it has 18 electrons, in the fourth, 23 electrons, in the fifth shell it has 8 electrons and in the sixth, 2 electrons.
Below you can see a table that shows the main characteristics of the promise.
|Density||7264 kg / m3|
|Atomic mass||1.5 u|
|Medium radius||185 pm|
|Electronic configuration||[Xe] 4f56s2|
|Electrons per shell||2, 8, 18, 23, 8, 2|
|Heat of fusion||86.7 kJ / mol|
|Specific heat||180 J / (Kkg)|
|Thermal conductivity||17.9 W / (K m)|