โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Polonium
  • ๐Ÿ‡บ๐Ÿ‡ฆ ะŸะพะปะพะฝั–ะน
  • ๐Ÿ‡จ๐Ÿ‡ณ ้‡™
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Polonium
  • ๐Ÿ‡ซ๐Ÿ‡ท Polonium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Polonium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืคื•ืœื•ื ื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Polonio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒใƒญใƒ‹ใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Polônio
  • ๐Ÿ‡ช๐Ÿ‡ธ Polonio
  • ๐Ÿ‡ธ๐Ÿ‡ช Polonium
  • ๐Ÿ‡ท๐Ÿ‡บ ะŸะพะปะพะฝะธะน

Polonium - 84Po: historical information

  • Discoveror: Marie Curie
  • Place of discovery: France
  • Date of discovery: 1898
  • Origin of name : named after "Poland" (birthplace of Marie Curie).

Polonium was the first element discovered by Marie Sklodowska Curie in 1898, while seeking the cause of radioactivity of pitchblende from Joachimsthal, Bohemia. It required several tonnes of pitchblende to produce very small amounts of polonium.