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]

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.

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 …

Everybody knows that positive charge is due to protons and negative charge is due to electrons, but what does the charge mean? Why were negative and positive charges so designated? Was it also a possibility to call the charge of an electron positive and the charge of a proton negative?

2012年12月18日 · Benjamin Franklin was the one who first chose to call electrons negative and protons positive. According to the textbook " Physics for Scientists and Engineers " by Raymond A. Serway, Franklin identified electric charge carriers after a series of rubbing experiments.

More specifically, negatively charged ions are called anions and positively charged ions are called cations. Atoms lose electrons because of how they interact with forces beyond atomic nuclei. When an electron gains extra energy, it can become excited.

2023年11月21日 · Learn if electrons are negatively charged particles. See the negative charge definition and the difference between positively and negatively charged particles. Updated: 11/21/2023. Are...

2022年10月31日 · Electrons are negatively charged subatomic particles found in the outermost regions of atoms. They are considered to be both partially particle-like and partially wave-like, depending on the...

2019年7月24日 · An electron is a stable negatively charged component of an atom. Electrons exist outside of and surrounding the atom nucleus. Each electron carries one unit of negative charge (1.602 x 10-19 coulomb) and has a small mass as compared with that of a neutron or proton. Electrons are much less massive than protons or neutrons.

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 .