A rare earth element,
leader of the lanthanides,
lately somehow prominent,
in an extra row it hides.

Hidden in some certain ore,
Similar to cerium,
it entered rather late the floor.
a hide and seek game had begun.

But now we know it does exist,
at a closer look, its unique as well,
in the perodic tables list
some features I might tell,

It is used for special glass,
mostly in infrared range,
in electric vehicle battery class,
for anodic power exchange.

In welding applications,
it strengthens electronic density,
better than radioactive variations,
it means, it sets electrons easier free.

What the future for this element might bring,
a hydrogen storage application,
supramagnetic material might be a thing,
time will show, time and dedication.