What was Ernest Rutherford trying to find out about the Plum Pudding Model?
The plum pudding model proposed by J.J. Thomson claimed that an atom is composed of positive matter with negative charged electrons randomly embedded within like plum pudding. He shot alpha particles from radioactive material through gold foil. He was trying to find electron placement in the atom. He suspected only minor deflections of the alpha particles because they were extremely large and massive compasred to that of electrons. What he discovered was that 1 in every 20,000 particles were reflected more than ninety degrees, therefore an extremely smal,l positively charged, dense ‘nucleus’ existed in the middle.