How was J.J. Thompson’s model of an atom similar to plum pudding?

positive protons like plums were spread throughout a negatively charged sphere of pudding

positive electrons like plums were spread throughout a negatively charged sphere of pudding

negative protons like plums were spread throughout a positively charged sphere of pudding

negative electrons like plums were spread throughout a positively charged sphere of pudding

Question

How was J.J. Thompson’s model of an atom similar to plum pudding?
		
positive protons like plums were spread throughout a negatively charged sphere of pudding
		
positive electrons like plums were spread throughout a negatively charged sphere of pudding
		
negative protons like plums were spread throughout a positively charged sphere of pudding
		
negative electrons like plums were spread throughout a positively charged sphere of pudding

astrophysics · Answer

As I remember it went as; negative charged raisins surrounded by positively charged pudding. Making sure what I said above is correct, and it seems so: https://en.wikipedia.org/wiki/Plum_pudding_model