Electronvolt
eV
Scientific Unit
The electronvolt is the natural energy scale for atomic and subatomic processes. It's the energy gained by an electron when accelerated through a potential difference of 1 volt.
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Electronvolt (eV)
The electronvolt is the natural energy scale for atomic and subatomic processes. It’s the energy gained by an electron when accelerated through a potential difference of 1 volt.
Characteristics
- Physics unit
- 1 eV = 1.60218×10⁻¹⁹ joules
- Atomic scale: natural for describing atom and molecular energies
- Used in: quantum mechanics, particle physics, spectroscopy
- Large amounts: often expressed as keV, MeV, GeV, TeV
Conversions
- 1 eV = 1.60218e-19 J
- 1 eV = 1.60218e-22 kJ
- 1 eV = 3.82443e-20 cal
- 1000 eV = 1 keV (kiloelectronvolt)
- 1,000,000 eV = 1 MeV (megaelectronvolt)
Related Units
Used In Regions
Physics Chemistry Quantum