Describe the location of the positive charge of the atom in j. j. thomson’s plum pudding model.

Thompson proposed a model (the plum pudding model) whereby the negatively charged corpuscles were distributed in a uniform sea of positive charge. In other words the positive charge was like the pudding and the negative charge were like raisins on the pudding.

10.063g / 10.00 ml = 1.0063 g/ml which rounds off to 4 sig figs as: 1.006 g/ml

The mass has escaped into a gas which you can not see so the law stays true.