REmake+denis+and+josh

 Title    Short biography Contribution to the atomic theory Experiments Picture of what his atom looked like  
 * born in Cheshire, England
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 * 1) summary


 * Head of the British Mission attached to the Manhattan Project for the development of the atomic bomb.
 * He retired from this Mastership in 1959. From 1957 to 1962
 * Chadwick is the co-author of the book Radiations from Radioactive substances (1930).

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