noun
- negatively charged subatomic particles that orbit the nucleus of an atom
Usage: physics
Examples
- Electrons move around the nucleus in specific energy levels.
- When atoms lose or gain electrons, they become ions.
- The flow of electrons through a conductor creates an electric current.
- Electrons in the outer shell determine an element’s chemical properties.
- Scientists use electron microscopes to view extremely small objects.
- The cathode ray tube works by directing a beam of electrons.
- Metals conduct electricity well because their electrons move freely.