Chemistry GCSE
Lone pair
What Lone pair means in Chemistry GCSE, as defined for Pearson Edexcel.
Definition of Lone pair
A pair of outer shell electrons that is not involved in chemical bonding.
Topics that use Lone pair
- Key concepts in chemistry (Pearson Edexcel GCSE)
Related terms
Using Lone pair 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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