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What the name means: Polonium was named after Poland, the home country of the chemist and Nobel Laureate, Marie Curie.
Who identified polonium?: Marie Curie became interested in radiation on hearing about Henri Becquerel's observations on how pitchblende had fogged a photographic plate. She and her husband, Pierre Curie analysed a sample of pitchblende. After removing uranium and thorium from the ore, they used a new, sensitive electroscope to keep trace of the radio active material that remained. In 1898 they concluded that there were probably new, radio active elements in the sample and went on to isolate polonium and radium.
STP = standard temperature and pressure.
About polonium: Polonium is a silvery-grey metal that is rare in the Earth's crust since it has a very short half life.
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