Which chemical element is named after the country Poland?

Polonium is the chemical element named after Poland.

Marie Curie and Pierre Curie discovered polonium in 1898 while investigating radioactive materials in pitchblende. Marie Curie named it polonium after her homeland, Poland, which at that time was partitioned among neighboring empires and did not exist as an independent state.

Polonium has atomic number 84 and symbol Po. It is a rare, highly radioactive metalloid. The isotope polonium-210 emits powerful alpha particles and has been used in specialized devices, although its radioactivity makes uncontrolled exposure extremely dangerous.

Polonium is different from francium, which was named after France, and germanium, which was named after Germany. The names reflect geographic associations, while the elements themselves have different atomic numbers and nuclear properties.