Thomson atom model

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1. J. J. Thomson-Discovering Electrons Made by Olivia, Anna, Kaylee, and Andrew

2. Born December 18, 1856 in Cheetham Hill, England Died August 30 ,1940 in Cambridge, United Kingdom His brother was Frederick Thomson started his education in a private school Thomson had a lot of knowledge in science Thomson moved to Trinity College in Cambridge. Thomson married Rose Elizabeth Paget. JJ Thomson Background

3. J.J Thomson discovered the electron in 1897 Made the plum pudding model of the atom In 1904 the discovery of the atomic nucleus Thomson’s model composed of electrons called corpuscles He figured out that you can divide atoms Thomson's discoveries

4. Thomson’s model was not a solid but a neutral sphere Thomson’s model has positive and Negative charge His plum pudding model of an atomic structure proposed in the late 19th century Thomson's Model

5. Cathode Ray Tubes Thomson found rays that were green and carried electricity, scientists named these tubes cathode tubes. Computers and TV contains cathode ray tubes. He discovered that cathode rays and the charge they deposited were intrinsically linked together. In the second experiment , he discovered that the charge in the cathode rays was negative. He deduced that the cathode rays were made up of negatively-charged particles.

6. Thomson’s Accomplishments He was awarded the Nobel Prize in the the Nobel Prize in Physics in 1906 for the discovery of the electron. He was knighted in 1908 and appointed to the Order of Merit in 1912

7. An electron is a is a particle with one negative charge. All atoms are made of a nucleus and electrons. Electrons are very small compared to the rest of the atom. electrons are extremely small compared to the rest of the atom and hold negative charges that balance the nucleus of an atom.The mass of an electron is 1,000 times smaller than the mass of a proton What is an Electron ?

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