Final answer:
An electron volt (eV) is the energy given to a fundamental charge accelerated through a potential difference of 1 V. To convert between eV and joules, you can use the conversion factor 1.60 × 10–19 J/eV.
Step-by-step explanation:
An electron volt (eV) is the energy given to a fundamental charge accelerated through a potential difference of 1 V. It is a unit commonly used in particle physics and is defined as:
1 eV = (1.60 × 10-19 C) (1 J/C) = 1.60 × 10–19 J
This means that to convert from electron volts to joules, you simply multiply the number of eV by the conversion factor 1.60 × 10–19 J/eV. Similarly, to convert from joules to electron volts, you divide the number of joules by the conversion factor.