5 Questions
What is the mass of an electron in kilograms?
The mass of an electron is approximately $9 imes 10^{-31}$ kg.
What is the charge of an electron in coulombs?
The charge of an electron is approximately $1.6 imes 10^{-19}$ coulombs.
What is the mass of a proton in kilograms?
The mass of a proton is approximately $1.6 imes 10^{-27}$ kg.
What is the charge of a proton in coulombs?
The charge of a proton is approximately $1.6 imes 10^{-19}$ coulombs.
Who discovered the neutron, and in what year?
Neutrons were discovered by James Chadwick in 1932.
Test your knowledge of electrons, the negatively charged particles found in atoms, with this quiz. Explore the discovery of electrons by J.J. Thomson and their fundamental properties, such as mass and charge.
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