Search results
- The model was compared to a watermelon because the red edible part of a watermelon was compared to the sphere with a positive charge, and the black seeds filling the watermelon resembled the electrons inside the sphere.
Thomson atomic model, earliest theoretical description of the inner structure of atoms, proposed about 1900 by William Thomson (Lord Kelvin) and strongly supported by Sir Joseph John Thomson, who had discovered (1897) the electron, a negatively charged part of every atom.
- The Editors of Encyclopaedia Britannica
People also ask
Why was Thomson's atomic model compared to a watermelon?
What atomic theory was proposed by Thomson?
Why does Thomson's atomic model resemble a spherical plum pudding?
Do you know one of the early atomic models of an atom?
- Thomson Model Introduction
- Table of Contents
- Postulates of Thomson’s Atomic Model
- Limitations of Thomson’s Atomic Model
Thomson atomic modelwas proposed by William Thomson in the year 1900. This model explained the description of an inner structure of the atom theoretically. It was strongly supported by Sir Joseph Thomson, who had discovered the electron earlier. During cathode ray tube experiment, a negatively charged particle was discovered by J.J. Thomson. This e...
Postulate 1: An atom consists of a positively charged sphere with electrons embedded in it Postulate 2: An atom as a whole is electrically neutral because the negative and positive charges are equal in magnitude Thomson atomic model is compared to watermelon. Where he considered: 1. Watermelon seeds as negatively charged particles 2. The red part o...
It failed to explain the stability of an atom because his model of atom failed to explain how a positive charge holds the negatively charged electrons in an atom. Therefore, This theory also failed...Thomson’s model failed to explain the scattering of alpha particles by thin metal foilsNo experimental evidence in its support- 32 sec
The plum pudding model was the first scientific model of the atom with internal structure. It was first proposed by J. J. Thomson in 1904 following his discovery of the electron in 1897, but it was subsequently rendered obsolete by Ernest Rutherford 's discovery of the atomic nucleus in 1911. The model tried to account for two properties of ...
The model has also been compared to a watermelon because the red edible part of a watermelon was compared to the sphere having a positive charge and the black seeds filling the watermelon looked similar to the electrons inside the sphere.
5 days ago · Why is Thomson’s Atomic model also known as the Watermelon Model? The JJ Thomson model is also called the atomic watermelon model because it resembles both spherical plum pudding and watermelon. It is also compared to watermelon because the red edible part of the watermelon is compared to a positively charged sphere and the black seeds that ...
- J J.J. Experiments with cathode ray tubes by Thomson showed that all the atoms contain tiny subatomic particles or electrons that are negatively ch...
- At the time, Thomson's model was correct, because it explained everything scientists already understood about the atom. Thomson 's model was dismis...
- In the year 1897 J.J. Thomson discovered the electron by playing with a tube that was Crookes, or cathode ray. He had shown that the cathode rays w...
- In 1911, Rutherford proved that the Thomson hypothesis was "wrong": there was no uniform distribution of both positive and negative particles. Ruth...
- JJ Thomson’s discovery in 1897 was a revolution for its time and a landmark occasion in the history of particle physics. In this model, for the fir...
- The JJ Thomson model is also called the atomic watermelon model because it resembles both spherical plum pudding and watermelon. It is also compare...
- In 1909, the physicist Rutherford along with Ernest Marsden performed an experiment which is known as the Rutherford alpha scattering experiment wa...
- An Alpha particle, also known as alpha rays or alpha radiation, consists of protons and neutrons bound together into a particle which is identical...
- According to the latest research, The orbital theory of elections has been the most exciting field where electrons are considered as clouds of nega...
J.J Thomson contributed massively to the model of the atom and the modern day theory. His work involved the use of cathode ray tubes and identifying a particle lighter than the atom itself, the electron.
Apr 22, 2024 · Thomson's atomic model is also called the plum pudding model because the embedded electrons resembled the seeds of a watermelon while the watermelon’s red mass represented the positive charge distribution.
