We elaborate the uses of Protactinium and atomic properties with characteristics. Protactinium is a shiny silvery-white chemical element with atomic number 91. Its symbol is Pa and it belongs to the group of actinides and its normal state in nature is solid. Protactinium is located at position 91 on the periodic table.
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On this page you can discover the chemical properties of protactinium and information about protactinium and other elements of the periodic table such as cerium, praseodymium, neodymium or promethium. You will also learn what protactinium is for and you will know its uses through its properties associated with protactinium such as its atomic number or the usual state in which protactinium can be found.
You will be able to see qualities of protactinium 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 protactinium atoms and other properties.
For some elements, part of this information is unknown. In these cases we show the properties attributed to them.
Properties of protactinium
Protactinium is part of the actinide group. Actinides that have a higher atomic number cannot be found in nature and their life span is shorter. All isotopes of the actinide group, including protactinium, are radioactive.
The state of protactinium in its natural form is solid. Protactinium is a shiny silver-white chemical element that belongs to the group of actinides. The atomic number of protactinium is 91. The chemical symbol for protactinium is Pa. The melting point of protactinium is 2113 degrees Kelvin or 1840.85 degrees Celsius, or degrees Centigrade. The boiling point of protactinium is 4300 degrees Kelvin or 4027.85 degrees Celsius or degrees Celsius.
Atomic properties of protactinium
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. Protactinium has an atomic mass of 231.03588 u.
The electron configuration of protactinium is [Rn] 7s25f26d1. 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 protactinium is 180 pm.
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Characteristics of protactinium
Below you can see a table that shows the main characteristics that protactinium has.
| Protactinium | ||
|---|---|---|
| Chemical symbol | Pa | |
| Atomic number | 91 | |
| Period | 7 | |
| Appearance | shiny silver white | |
| Block | F | |
| Density | 15370 kg / m3 | |
| Atomic mass | 231.03588 u | |
| Medium radius | 180 pm | |
| Electronic configuration | [Rn] 7s25f26d1 | |
| Oxidation states | 5 (weak base) | |
| Crystal structure | orthorhombic | |
| State | solid | |
| Melting point | 2113K | |
| Boiling point | 4300K | |
| Heat of fusion | 15 kJ / mol | |
| Vapor pressure | 5.1 × 10-5Pa at 2200 K | |
| Electronegativity | 1.5 (Pauling) | |
| Specific heat | 120 J / (kg K) | |
| Electric conductivity | 5.29 × 106 m-1 Ω-1 | |
| Thermal conductivity | 47 W / (m K) | |
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