The electronvolt is often used in atomic, nuclear and particle physics.

However, the unit of energy electronvolt reminds us that the elementary charge was once called electron.

The electronvolt or electron volt, symbol eV, is used to measure energy.

In certain fields, such as plasma physics, it is convenient to use the electronvolt as a unit of temperature.

For instance, the photon propagating in the average interstellar vacuum acquires a tiny mass which is estimated to be about 10 electronvolt.

An energy unit that is used in atomic physics, particle physics and high energy physics is the electronvolt (eV).

The electronvolt (eV) is primarily a unit of energy, but because of the mass-energy equivalence it can also function as a unit of mass.

This method uses x-ray sources to study energy levels of atomic core electrons, and at the time had an energy resolution of about 1 eV (electronvolt).

In a unit system adapted to subatomic scales, the electronvolt is the appropriate unit of energy and the Petahertz the appropriate unit of frequency.

When the LHC was restarted in November 2009, it set a new speed record by accelerating protons to 1.18 TeV (teraelectronvolt, or trillion electronvolt).

The SI unit of temperature is the kelvin (K), but using the above relation the electron temperature is often expressed in terms of the energy unit electronvolt (eV).

When a small bias "V" is applied to the system, only electronic states very near the Fermi level, within "eV" (a product of electron charge and voltage, not to be confused here with electronvolt unit), are excited.

The EI 50, used for relatively small molecules (as opposed to methods like MALDI), ionizes molecules via electron ionization (normally under 70 electronvolt conditions) and then accelerates them through an electric potential.

The hartree is usually used as a unit of energy in atomic physics and computational chemistry: for experimental measurements at the atomic scale, the electronvolt (eV) or the reciprocal centimetre (cm) are much more widely used.

If the photon is of lower energy, but still has sufficient energy (in general a few Electronvolt to a few keV, corresponding to visible light through soft X-rays), it can eject an electron from its host atom entirely (a process known as the photoelectric effect), instead of undergoing Compton scattering.