The plum pudding model has electrons surrounded by a volume of positive charge like negatively charged plums embedded in a positively charged pudding. Rather ironically the plum pudding model is actually a misnomer. Scattered in this fluid were negatively charged electrons these were the plums in the pudding. The plum pudding model which was devised by j j. Thompson by the end of the 19th century was a crucial step in the development of atomic physics.
It referred at that time to raisins not plums. Description of his model. Thomson s model was known as the plum pudding model or raisin bread model as each atom was a sphere filled with a positively charged fluid known as the pudding. Thomson thomson recognized one of the consequences of the discovery of the electron. The raisin pudding model of the atom j.
It uses an archaic meaning of the british plum pudding which is actually a cake made with raisins in pre victorian time. It uses an archaic meaning of the british plum pudding which is actually a cake made with raisins in pre victorian time. It referred at that time to raisins not plums. The plum pudding model has electrons surrounded by a volume of positive charge like negatively charged plums embedded in a positively charged pudding.