The electron ( e− , or β− in nuclear reactions) is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first...

An electron microscope is a microscope that uses a beam of electrons as a source of illumination. They use electron optics that are analogous to the glass...

In chemistry and physics, valence electrons are electrons in the outermost shell of an atom, and that can participate in the formation of a chemical bond...

In chemistry and atomic physics, an electron shell may be thought of as an orbit that electrons follow around an atom's nucleus. The closest shell to...

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure)...

electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons....

An electron transport chain (ETC) is a series of protein complexes and other molecules that transfer electrons from electron donors to electron acceptors...

The electron affinity (Eea) of an atom or molecule is defined as the amount of energy released when an electron attaches to a neutral atom or molecule...

An electron orbital may refer to: An atomic orbital, describing the behaviour of an electron in an atom A molecular orbital, describing the behaviour...

In chemistry, electron deficiency (and electron-deficient) is jargon that is used in two contexts: chemical species that violate the octet rule because...