Question

What is the common oxidation state of the elements of the lanthanoids series?

Answer 1

Oxidation state

• The total number of electrons that an atom gains or loses in order to form a chemical bond with another atom is known as the oxidation number, also known as the oxidation state.

The common oxidation state of Lanthanoid series

• Lanthanides have a wide range of oxidation states.
• The most common oxidation state of the elements of the Lanthanides series is$+3$.
• The elements of the lanthanoid series also show $+2$, and $+4$ oxidation states.
• The increased stability of empty, half-filled, or filled f subshells causes this irregularity.

So, the common oxidation state of the elements of the lanthanoids series is $+3$.