The electron (e −, or β − in nuclear reactions) is a subatomic particle with a negative one elementary electric charge. [13] Electrons belong to the first generation of the lepton particle family, [14] and are generally thought to be elementary particles because they have no known components or substructure. [1]

2018年12月8日 · Electron Definition. An electron is a stable subatomic particle with a negative electrical charge. Unlike protons and neutrons, electrons are not constructed from even smaller components. Each electron carries one unit of negative charge (1.602 x …

2025年1月8日 · Electron, lightest stable subatomic particle known. It carries a negative charge of 1.6 x 10^-19 coulomb, which is considered the basic unit of electric charge. The electron was discovered in 1897 by the English physicist J.J. Thomson during investigations of cathode rays.

2023年2月2日 · What is electron & who discovered it: also learn its symbol, size, mass, charge, & how to find their number in an atom with example and picture

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 smaller particles. Also unlike protons and neutrons, electrons have essentially no mass.

2024年5月21日 · The electron is a subatomic particle that is present in all atoms. Unlike protons, neutrons, or the nuclei of atoms, electrons are elementary particles. This means they are not composed of even smaller particles.

2024年5月21日 · An electron is a subatomic particle with a negative electric charge that is equal, but opposite to, the positive charge of a proton. These two particles, together with neutrons, form atoms, with the protons and neutrons residing in the nucleus, and the electrons in surrounding orbitals, held in place by the electromagnetic force. They are ...

What is an Electron? - Electron charge, (symbol e), fundamental physical constant expressing the naturally occurring unit of electric charge, equal to 1.602176634 × 10−19 coulomb. Learn about its discovery, comparison with the other subatomic particles like …

2018年6月8日 · The electron is a subatomic (smaller than an atom) particle that carries a single unit of negative electricity. All matter consists of atoms that, in turn, contain three very small particles: protons, neutrons, and electrons.

An electron is a negatively charged subatomic particle that can be either bound to an atom or free (not bound). An electron that is bound to an atom is one of the three primary types of particles within the atom -- the other two are protons and neutrons .