GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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J.J Thomson
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Ernest Rutherford
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James Chadwick
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Werner Heisenberg
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Detailed explanation-1: -In 1897 Thomson discovered the electron and then went on to propose a model for the structure of the atom. His work also led to the invention of the mass spectrograph.
Detailed explanation-2: -J.J. Thomson decided to find out for sure. Thomson was a physics professor at Cambridge University in the UK. He placed cathode tubes in electric and magnetic fields.
Detailed explanation-3: -J.J. Thomson discovered the electron in 1897. An electron is a constituent of all the matter we are surrounded by.
Detailed explanation-4: -During the 1880s and ‘90s scientists searched cathode rays for the carrier of the electrical properties in matter. Their work culminated in the discovery by English physicist J.J. Thomson of the electron in 1897.