Answer:
Plum pudding
Step-by-step explanation:
Note these points:
• J.J Thompson performed the Cathose ray experiment
,
• From this experiment, he discovered that all atoms contain tiny negatively charged subatomic particles called electrons
,
• J.J Thompson proposed the plum pudding model of the atom
,
• This model contained negatively-charged electrons embedded within a positively charged soup
,
• It was on April 30, 1897 that J.J Thompson announced the presence of the electrons in the atom, a result of his cathode ray experiment
From the points highlighted above, we can conclude that J.J Thompson gained recognition fpr discovering the electron and also won a noble prize for his plum pudding model of the atom