element polonium

element polonium
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  • Hi my name is zaire and my element is polonium. It has the atomic number of 84 and the chemical symbol Po
  • Polonium was discovered in 1898 by Marie Curie while trying to determine the cause of pitchblende's radioactivity 
  • When the uranium and thorium were removed from the sample of pitchblende,Marie and her husband Pierre discovered that it somehow became even more radioactive. It was also the first element she ever discovered.
  • Polonium was named after her native country of Poland in an attempt to bring attention to its lack of independence.
  • Opinion varies on weather polonium is a metal or metalloid  element.Historically,polonium played an important role,as it was crucial to the design of the Fat Man bomb that dropped on Nagasaki in 1945.
  • Polonium is an extremely rare element due to the extremely short half-life of its isotopes.It is found in uranium ore at a concentration of 0.1 milligrams per metric ton of ore.
  • The amounts found in Earth's crust are not considered to be detrimental.Natural polonium is hard to extract.The largest amount ever produces from natural products came from refining 37 tons of radium residue,which yielded only nine milligrams of polonium
  • Most polonium is now produced by bombarding bismuth with neutrons or protons .There are thirty-three known isotopes of polonium.All of the isotopes are radioactive.
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