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  • Physics
    | bgcolor="#ffbe00" | [[Polonium|Po]]<br/>190
    8 KB (924 words) - 18:17, 26 September 2018
  • Randy Spaulding
    ...gamma rays” by bombarding light elements such as boron and beryllium with polonium alpha rays. Curie-Joliot and Joliot placed sheets of paraffin in the path
    103 KB (15,811 words) - 16:58, 21 September 2009
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