What is the plum pudding model?

Hi Sandhya, the plum pudding model is an old model for the structure of the atom, where it was believed that positive charge existed throughout the atom, and there were little pieces of negative charge scattered about (like plums in a plum pudding). We now know this isn't true, and that an atom has a nucleus in the centre, and electrons in orbit around the nucleus. This was proven using the gold leaf scattering experiment, which would take a little while to explain here. You can book a session if you like by clicking on my profile!

It is a description about atom of materials. Total body of atom is assumed positively charged as the body base of pudding and electrons are placed randomly in whole body of atom.Hete electrons are treated as pulm that surround the pudding.

Hi sandhya First of all I appreciate you for the enthusiasm. Plum pudding model is the old model for atoms but it is one of a basic model Ie, all other good models are came from this basic understanding. This model is proposed by J. J Thomson and he said that atom is like a plum pudding or water melon. Which means the electrons are spread like water melon seeds in a positive volume of water melon (solid content). Thank you hope you like this and pkease click my profile for more details.

The plum pudding model was put forward by J.J Thompson and is sometimes referred to as Thompson's model of the atom in exams. The basic idea is that the atom was believed to be entirely positively charged and there were electrons scattered about inside this positive charge. This is where the analogy to a plum pudding comes from with the electrons being the "plums" in the positive "pudding". This theory was disproved and the nuclear model of the atom was developed.

The plum pudding model is an early atomic model proposed by J.J. Thomson in the late 19th century as a representation of the structure of atoms. According to this model, atoms are composed of a positively charged "pudding-like" substance with negatively charged electrons embedded within it, resembling plums in a plum pudding or raisins in a cake. In the plum pudding model, the positive charge of the atom is spread uniformly throughout the atom, like the pudding, while the electrons are distributed within this positive "pudding" in a random manner, similar to the distribution of plums in a pudding. Thomson proposed that the electrons and the positive charge were held together by electrostatic forces. Hope this helps :)