> [!summary] Electrons are a fundamental property of nature discovered experimentally >[!info]+ Read Time **⏱ 1 min** # Definition Electrons are a fundamental property of nature, meaning there isn't anything that makes up an electron. Electrons were discovered experimentally in the cathode ray tube experiment, which showed that negatively charged particles were deflected in electric and magnetic fields. He called them electrons. | Basic Properties | Value for Electrons | | ---------------- | ----------------------- | | Symbol | $e^-$ | | Charge | $-1.6\times 10^{-19}C$ | | Mass | $9.11\times 10^{-31}kg$ | # Resources <iframe width="560" height="315" src="https://www.youtube.com/embed/FNiHCnqPAH4?si=piKyDbCtMBOcSxys" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe> --- > 📚 Like this note? [Star the GitHub repo](https://github.com/rajeevphysics/Obsidian-MathMatter) to support the project and help others discover it! ---