What did james chadwick knew about atoms b4 his big discovery in 1932 ?

Question

what he knew about atoms and how did he discover them (where he found the information) and what he found about atoms...what conclusion did he make of his discovery

thanks 4 ur help and time

Answer 1

it might be the fore inventors method like rutherford and j.j.thomson.on folloving the same scateering cathode ray tube experiment goldstien found the canal rays like wise ,the inventiions and discoveries and theory of atoms and its shape would have helped chadwick find the neutrons..