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Praseodymium (Pr)

Element with atomic number 59, category: Lanthanide, a solid at room temperature.

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Element 59 of 118

Lanthanide

Pr

Praseodymium

Group 5, Period 6 (lanthanide series)

Atomic Number
59
Atomic Mass
140.908 u
State at Room Temperature
Solid

Common Uses

Magnets

Electron Diagram

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About Praseodymium

Praseodymium is a chemical element with the symbol Pr and atomic number 59, meaning every atom has 59 protons in its nucleus. It is classed as Lanthanide and is a solid at room temperature. Its atomic mass is about 140.908 atomic mass units (u).

On the periodic table, Praseodymium sits in group 5, period 6 (lanthanide series), which determines how many electron shells it has and how it tends to react with other elements.

Uses of Praseodymium

In daily life and industry, Praseodymium is used for Magnets. These uses are closely tied to the typical properties of elements in the Lanthanide category.

Electron Structure of Praseodymium

Using a simplified electron shell model (at most 2 electrons in the first shell, 8 in the second, 18 in the third, and so on), Praseodymium has 4 electron shells, with an approximate arrangement of 2, 8, 18, 31 electrons from the innermost shell to the outermost. This is a simplified learning model, not the full electron configuration that accounts for the s, p, d and f subshells.

Explore Other Elements

Want to see another element or try the element symbol quiz? Go back to the Interactive Periodic Table to explore all 118 chemical elements.

Frequently Asked Questions

The chemical symbol of Praseodymium is Pr, with atomic number 59 and an atomic mass of about 140.908 u.
Praseodymium is in the Lanthanide category and is a solid at room temperature.
Praseodymium is in group 5, period 6 (lanthanide series) of the periodic table.
Praseodymium is commonly used for Magnets.
Using the simplified Bohr model, Praseodymium has 4 electron shells, with an approximate arrangement of 2, 8, 18, 31 electrons from the innermost shell to the outermost.