| Except for research purposes, lutetium has limited applications. |
| Lanthanides are part of a group of 15 chemical elements ranging from lanthanum to lutetium in the periodic table of chemical elements. |
| At least in the solid state, these latter are bound to the lutetium center as axial ligands. |
| Use as a luminophore in the production of apparatuses using low-voltage luminescence employing electrons with low energy in the range 200 to 800 V, of a doped tantalate of yttrium, lutetium or gadolinium. |
| Because lutetium is so expensive, it has almost no commercial use. |
| The gadolinium and lutetium exceptions result in a marked increase in radius compared to the slight decrease in metal atom radius for the other elements. |
