Mendeleev
Periodic table · chemistry · physics
Element story

Praseodymium

Atomic number 59 means that every Praseodymium nucleus contains 59 protons. That proton count is the element's identity: change it and you no longer have Praseodymium.

Start with the nucleus

Atomic number 59 means that every Praseodymium nucleus contains 59 protons. That proton count is the element's identity: change it and you no longer have Praseodymium.

Praseodymium (Pr) is chemical element 59. It belongs to the lanthanoids, and its reference state at room temperature is a solid. Those basic facts are a useful starting point for its chemistry and applications.

In practice, it turns up most often in magnets, aircraft alloys and special glasses.

See the atom

Conceptual visual: electron shells are a learning aid, not a literal picture of quantum orbitals.

What this number means

Atomic number 59 means that every Praseodymium nucleus contains 59 protons. That proton count is the element's identity: change it and you no longer have Praseodymium.

Keep exploring

→ Praseodymium · Atomic structure · Periodic trends

59PrPraseodymium
Praseodymium · Pr · Z = 59

Praseodymium (Pr) is chemical element 59. It belongs to the lanthanoids, and its reference state at room temperature is a solid. Those basic facts are a useful starting point for its chemistry and applications.

Understanding the element

Praseodymium (Pr) is chemical element 59. It belongs to the lanthanoids, and its reference state at room temperature is a solid. Those basic facts are a useful starting point for its chemistry and applications.

Where do we encounter it?

In practice, it turns up most often in magnets, aircraft alloys and special glasses.

What its position in the table tells us

Praseodymium sits in period 6 and the F block. That location is useful because neighbouring elements often share trends in valence electrons, oxidation states and bonding behaviour.