Lutetium is one of the rare earth elements.

Indium is one of the chemical elements, its symbol is In, and its atomic number is 49.

Thulium is a rare element, mainly used in the manufacture of lasers.

Hafnium is a chemical element with atomic number 72.

Cerium is one of the rare earth elements.

Yttrium is one of the rare earth elements.

Rhodium is a type of precious metal, very rare and valuable.

Gallium is one of the elements on the periodic table.

Osmium is the densest element on Earth.

Francium is a radioactive alkali metal that is hardly present in nature.