Thomson hadn't an instrument; this model is only a hypothesis.
For a picture of the Thomson's model of the atom, also called the Plum Pudding model, visit the Related Link.
Plum-pudding model of atom.
The first model of the atom was developed by Thomson.
J.J. thomson's model doesn't have an electrons flowing around like how are planets orbit the sun. The current model has these things.
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The plum pudding model by JJ Thomson.
For a picture of the Thomson's model of the atom, also called the Plum Pudding model, visit the Related Link.
Plum-pudding model of atom.
Thomson is responsible for discovering that an atom contains electrons.
The first model of the atom was developed by Thomson.
J.J. Thomson discovered the electron and proposed the plum-pudding model for the atom.
JJ Thomson called his model of the atom the plum pudding model.
Joseph John Thomson or (JJ Thomson)
thomson
J.J. Thomson, also known for discovering the electron, also proposed a model of the atom in 1904. This model is known as both the plum pudding model and the blueberry muffin model, and it posits that the atom is made up of electrons which are surrounded by a "pudding" of positive charges.
J J Thomson
Dalton described atoms as solid spheres. Thomson discovered the the atom also contained negatively charged particles called electrons distributed in such a way that the atom had no charge.