memory trick for GK exam

How to remember invention of PROTON,ELECTRON,NEUTRON



P                   E                    N         ------------>          R                  J                      C



P----PROTON     INVENTED         BY RUTHERFORD 



E-----ELECTRON INVENTED BY J J THOMSON


N----NEUTRON INVENTED BY JAMES CHADWICK 

Ernest rutherford

J J  thomson

James chadwick

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