4.5.122 - Particles and antiparticles

Know that every particle has a corresponding antiparticle and be able to use the properties of a particle to deduce the properties of its antiparticle and vice versa.

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

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

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

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