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  1. Electron - Wikipedia

    In atoms, an electron's matter wave occupies atomic orbitals around a positively charged atomic nucleus. The configuration and energy levels of an atom's electrons determine the atom's …

  2. What Is an Electron? Definition and Facts

    Dec 8, 2018 · Learn what an electron is. Get its definition, learn where to find electrons, and understand the properties of this type of matter.

  3. Electron | Definition, Mass, & Facts | Britannica

    Nov 20, 2025 · In a neutral atom the number of electrons is identical to the number of positive charges on the nucleus. Any atom, however, may have more or fewer electrons than positive …

  4. Science Made Simple: What Are Electrons? - SciTechDaily

    May 21, 2024 · Electrons are elementary subatomic particles with negligible mass that surround the nucleus of an atom. They are bound to the nucleus due to electromagnetic attraction, with …

  5. DOE Explains...Electrons | Department of Energy

    The electron is a subatomic particle that is found in all atoms. Unlike protons, neutrons, or the nuclei of atoms, electrons are elementary particles. This means they are not made of even …

  6. What Are Electrons? The Movers of Modern Technology

    Jun 1, 2025 · Electrons became the building blocks of charge, interaction, and motion—key players in a universe that was far more dynamic and mysterious than Newton had imagined.

  7. What is an electron? - TechTarget

    Aug 10, 2022 · An electron is a negatively charged subatomic particle that together with protons and neutrons form an atom's nucleus. Learn why electrons are unique.