Electron Volt | MCQs

Explanation

Ionization energy (potential) is measured in:

• Electron volts (eV) (for single atoms).
• Kilojoules per mole (kJ/mol) (for molar quantities).

Explanation

An electron volt (eV) is a unit of energy.

It is defined as the amount of kinetic energy gained or lost by a single electron when it is accelerated through an electric potential difference of one volt.

Specifically:

1eV=1.602×10 −19 Joules

Thus, the electron volt is a convenient unit for measuring small amounts of energy, particularly in the fields of atomic and particle physics.