Respuesta :
The first model of the atom was proposed by J. J. Thomson. This model is known as "plum pudding model".
In this model, the atoms consists of a positive charge spread in a 'dough', with many negative electrons stuck in it. The plum pudding model was proven to be wrong later by Rutherfod, with its experiment of scattering of alpha particles against gold foils.
Answer: The correct answer is "J.J Thomson".
Explanation:
J.J Thomson developed the first model of the atom. It showed the structure of the inside of an atom. This model is known as "plum pudding model".
The positive charge is like pudding in the atom. The electrons are like plums inside the atom. The negatively charged electrons are embedded in a positively charged.
The positive charge in atom is balanced by the negative charge of the electron. In this way, the atom is neutral. But this model was rejected by Rutherford.