2.3.61 - Electronvolt

Be able to use the electronvolt (eV) to express small energies.

Use - electronvolt to connect the rule to the data and decision in the question.

This matters because - electronvolt determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - electronvolt to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Electronvolt is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.