1.Previous
3.Next

However, due to the lanthanide contraction, it is also less electronegative than its successor in the group, lutetium. Yttrium is the first d-block element in the fifth period.

The pure element is relatively stable in air in bulk form, due to passivation of a protective oxide film that forms on the surface. This film can reach a thickness of 10 um

1.Previous
3.Next