During the 19th century the accepted atomic model, was Dalton's atomic model, which postulated the atom was an "individible and indestructible mass".
However, at the end of 19th century J.J. Thomson began experimenting with cathode ray tubes and found out that atoms contain small subatomic particles with a negative charge (later called electrons). This meant the atom was not indivisible as Dalton proposed. So, Thomson developed a new atomic model.
Taking into consideration that at that time there was still no evidence of the atom nucleus, Thomson thought the electrons (with negative charge) were immersed in the atom of positive charge that counteracted the negative charge of the electrons. Just like the raisins embedded in a pudding or bread.
That is why this model was called the raisin pudding atomic model.
Option (a) is the correct answer.
J.J. Thomson is a renowned scientist who discovered the model of atom which is known as the plum pudding model.
Through this model Thomson stated that an atom consists of small particles. These small particles are positive and negative charges present inside an atom.
Whereas Democritus stated that an atom is indivisible and thus he proposed the indivisible atom model.
Ernest Rutherford discovered that an atom has lot of empty space and this space is nucleus. As he stated that positively charged particles are known as protons which are present inside a nucleus.
Rutherford's gold foil experiment discovered that an atom has nucleus in which most of the mass of an atom is concentrated.
Thus, we can conclude that the plum pudding model was proposed as a result of J. J. Thomson’s work.
A) the plum pudding model
It's the correct answer on Edgenuity :)
A. The plum pudding model.
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The answer to this would be option A. The plum pudding model
Based on his experiments, J.J Thomson concluded that atoms contained small negatively charged particles (electrons). He then concluded atoms must balance positive and negative particles. THis is how the Plum Pudding Model came to be.
the answer is A plum pudding model