Praseodymium element (Pr) is in period 6 of a periodic table. Praseodymium is in the f-block and it is classified as a lanthanide on the periodic table.
There is a lot more information related to praseodymium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Praseodymium element (Information Table)
- Praseodymium element in Periodic table
- Facts about Praseodymium
- Properties of Praseodymium
- Uses of Praseodymium
Praseodymium Element (Information Table)
The important data related to praseodymium element is given in the table below.
| Appearance of praseodymium | Gray white metallic appearance |
| Atomic number of praseodymium | 59 |
| Symbol of praseodymium | Pr |
| Atomic mass of praseodymium | 140.907 u |
| Protons, Neutrons & Electrons in praseodymium | Protons: 59, Neutrons: 82, Electrons: 59 |
| State of praseodymium (at STP) | Solid |
| Period number of praseodymium in periodic table | 6 |
| Block of praseodymium in periodic table | f-block |
| Category of praseodymium | Inner transition metals |
| Bohr model or Electrons per shell or Electrons arrangement in praseodymium | 2, 8, 18, 21, 8, 2 |
| Electron configuration of praseodymium | [Xe] 4f3 6s2 |
| Orbital diagram of praseodymium |  |
| Electronegativity of praseodymium (on pauling scale) | 1.13 |
| Atomic radius of praseodymium (van der Waals radius) | 239 picometers |
| Density of praseodymium | 6.64 g/cm3 |
| 1st ionization energy of praseodymium | 5.464 eV |
| Main isotope of praseodymium | 141Pr |
| Melting point of praseodymium | 1208 K or 935 °C or 1715 °F |
| Boiling point of praseodymium | 3403 K or 3130 °C or 5666 °F |
| Crystal structure of praseodymium | Double Hexagonal Close Packing (DHCP) |
| Discovery of praseodymium | By Carl Auer von Welsbach in 1885 |
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Praseodymium element in Periodic table
The Praseodymium element (Pr) has the atomic number 59 and is located in period 6. Praseodymium is a metal and it is classified as a lanthanide group element.
| H | He | ||||||||||||||||
| Li | Be | B | C | N | O | F | Ne | ||||||||||
| Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||
| K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr |
| Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe |
| Cs | Ba | La* | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn |
| Fr | Ra | Ac** | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og |
| *Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | ||||
| **Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr |
Facts about praseodymium
Here are a few interesting facts about the praseodymium element.
- Praseodymium was given its name from the two Greek words “prasios” (meaning green) and “didymos” (meaning twin).
- The earth’s crust contains around 8.7 ppm (by weight) of praseodymium.
- Praseodymium metal is not available from one place on the earth. But it is evenly spread on the earth.
- Carl Auer von Welsbach discovered praseodymium in 1885.
Properties of praseodymium
Here is a list of some physical properties and chemical properties of praseodymium.
Physical properties of praseodymium
- Praseodymium has a silvery gray metallic appearance.
- Praseodymium is a ductile as well as malleable metal, that means it can be drawn into thin wires and sheets.
- The density of praseodymium is 6.64 g/cm3 and its atomic mass is 140.907 amu.
- There are many isotopes of praseodymium, and out of these isotopes, the most abundant isotope is 141Pr.
- The melting point and boiling point of praseodymium is 1208 K and 3403 K respectively.
Chemical properties of praseodymium
- Praseodymium is a reactive metal and because of this it is always found with other compounds in the earth’s crust.
- Praseodymium is usually kept in the kerosene to prevent its reaction with atmospheric oxygen.
- Praseodymium shows many oxidation states like +2, +3, +4 and +5, but the +3 oxidation state is most common.
- Praseodymium forms a green oxide layer when kept open in the air.
Uses of praseodymium
Here are some uses of the praseodymium element.
- Praseodymium is alloyed with magnesium to get a string alloy which is used in aircraft engines.
- Praseodymium is used in fiber optic cables to amplify the signals.
- Praseodymium is used in carbon arc lighting that is used in studio lighting.
- Praseodymium is also used in the alloy that is used in cigarette lighters.
Article by;
