What was the significance of thompson’s plum pudding model of the atom?

The Plum Pudding Model is a model of atomic structure proposed by J.J. Thomson in the late 19th century. Thomson had discovered that atoms are composite objects, made of pieces with positive and negative charge, and that the negatively charged electrons within the atom were very small compared to the entire atom.

- Density could be used here as identifying physical property.

Explanations:- Take the known mass of the sample and put it in a cylinder filled with water. Note down the increase in water level. It would be the volume of the sample.

We know that, density = mass/volume

So, from the mass and volume, we could calculate the density of each sample and see whose calculated density is same as the density of copper given in the appendix(density table).