The plums represent negative electrons
The plums represent the electrons, which has a negative charge.
Thomson's plum pudding model is the model of an atom in which an atom is regarded as a sphere of size 10^(-10)m radius and positively charged matter in which electrons were embedded. Thomson used the pudding as the positive charge and the plums as the negative charge. The plums are stuck in the pudding just as electrons are randomly found in an atom.
In Thomson's plum pudding model, the mass of the atom is spread out uniformly throughout the positively charged sphere, similar to plums in a pudding. This model proposed that electrons were embedded in the positive sphere like plums in the pudding, representing the negative charges.
JJ Thomson called his model of the atom the "plum pudding model." In this model, electrons were embedded in a positively charged sphere, resembling the distribution of plums within a British pudding dessert.
Thomson's plum pudding model is the model of an atom in which an atom is regarded as a sphere of size 10^(-10)m radius and positively charged matter in which electrons were embedded. Thomson used the pudding as the positive charge and the plums as the negative charge. The plums are stuck in the pudding just as electrons are randomly found in an atom.
Thomson discovered electrons studying cathode rays and estimating the mass and electrical charge of the component particles.
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's scientific ideas were called the "plum pudding model" or the "Thomson model." This model proposed that atoms were composed of a positively charged material with negatively charged electrons embedded within it, resembling plums in a pudding.
The Thomson model, also known as the "plum pudding model," proposed that atoms are composed of a positively charged "soup" in which negatively charged electrons are embedded, resembling plums in a pudding. This contrasted with previous models, like Dalton's solid sphere model, which viewed atoms as indivisible and solid spheres. Thomson's model was revolutionary as it introduced the idea of internal structure within the atom, but it was later replaced by the Rutherford model, which proposed a nucleus at the center, surrounded by orbiting electrons.
The Thomson model, also known as the "plum pudding model," concluded that atoms are composed of a uniform positive charge with negatively charged electrons embedded within it, resembling a pudding with plums. This model suggested that the positive charge was spread throughout the atom, counterbalancing the negative charges of the electrons. However, it was later disproved by Rutherford's gold foil experiment, leading to the development of the nuclear model of the atom.
The plum pudding model was proposed by J.J. Thomson in 1904, before the discovery of the atomic nucleus. It suggested that atoms were composed of positively charged substance with electrons embedded within it like plums in a pudding. It was later replaced by the Rutherford model when the nucleus was discovered.
J.J. Thomson is credited with the discovery of the electron in about 1904. He envisioned negatively charged "corpuscles" floating in a positively charged cloud, just like plums in a plum pudding. This was the "plum pudding" model of the atom, and it lasted until Geiger and Marsden conducted their gold foil experiment in about 1909.