Polonium

Thursday, December 27, 2012

Polonium is a radioactive metallic element, discovered by M and Mme Curie in 1898. It is found in small quantities in uranium ores. The isotope polonium-210 is produced by bombarding bismuth with neutrons. It is used in the control of static electricity. Symbol Po; atomic weight 210; atomic number 84; valence 2, 4.