Jawabanmu

2014-08-22T14:58:24+07:00
Proton - gold stein
elektron - j.j. thomson
neutron - chadwick
2014-08-22T15:00:37+07:00
Penemu Elektron : Jj Thompson
Penemu Neutron : James Chandwik
Penemu Proton : Emest Rutherfor