Chemistry GCSE
Ion
What Ion means in Chemistry GCSE, as defined for OCR.
Definitions of Ion
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
An atom or group of atoms that has an electrical charge, either positive or negative, due to the loss or gain of electrons.
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Topics that use Ion
- Topic C1: Particles (OCR GCSE)
- Topic C2: Elements, compounds and mixtures (OCR GCSE)
Related terms
Using Ion in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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