Question
Which particle did JJ Thomson discover?
The correct answer is
Electron
Discovery Analysis: JJ Thomson's Particle
The question asks to identify the subatomic particle discovered by scientist J.J. Thomson.
Key Information
- Scientist: J.J. Thomson
- Discovery Task: Identify the particle he discovered.
Analyzing the Options
- Neutron: Discovered later by James Chadwick.
- Nucleus: Discovered by Ernest Rutherford through his gold foil experiment.
- Proton: Identified by Ernest Rutherford, building on earlier work by Eugen Goldstein.
- Electron: Discovered by J.J. Thomson while studying cathode rays.
Conclusion
Through his experiments with cathode rays around 1897, J.J. Thomson demonstrated the existence of a negatively charged particle with a very small mass, which he called the "corpuscle," now known as the electron.
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Important Questions from Discovery of the Electron
The discovery and understanding of electromagnetic induction is based on a long series of experiments carried out by ______.
What is the meaning of the Greek origin word, ‘Elektron’?
An American scientist, showed that lightning and the spark from clothes are essentially the same phenomenon. What is the name of the scientist?
- Who discovered the presence of electron in an atom?
Who discovered the electrons?
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