Atomic NumberAtomic Number of Praseodymium
Atomic Number of Praseodymium is 59.
Chemical symbol for Praseodymium is Pr. Number of protons in Praseodymium is 59. Atomic weight of Praseodymium is 140.90766 u or g/mol. Melting point of Praseodymium is 931 °C and its the boiling point is 3212 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Praseodymium
Praseodymium is a soft light grey color metal which is quite soft and easily produces various chemical compounds. It has got its name after the Greek expression meaning green lookalike. It is not toxic and not essential for living organisms on our planet. It can be found as a part of minerals and chemical compounds on the Earth crust. The applications of this element include producing green color in glass or ceramics, producing electrodes and some kinds of lights, and in producing goggles, due to the reflective properties of praseodymium.
Properties of Praseodymium Element
| Atomic Number (Z) | 59 |
|---|---|
| Atomic Symbol | Pr |
| Group | |
| Period | 6 |
| Atomic Weight | 140.90766 u |
| Density | 6.773 g/cm3 |
| Melting Point (K) | 1208 K |
| Melting Point (℃) | 931 °C |
| Boiling Point (K) | 3793 K |
| Boiling Point (℃) | 3212 °C |
| Heat Capacity | 0.193 J/g · K |
| Abundance | 9.2 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Lanthanide |
| Electronegativity (Pauling) χ | 1.13 |
| Ionization Energy (eV) | 5.473 |
| Atomic Radius | 185pm |
| Covalent Radius | no datapm |
| Valence Electrons | 2 |
| Year of Discovery | 1895 |
| Discoverer | von Welsbach |