Edexcel GCSE Physics · 1PH0
Specification 6.9 · Paper 1
Revise: Ion FormationTo form a positive ion, an atom loses one or more of its outer electrons. The protons do not leave the nucleus during this process.
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GCSE Physics · key term
The electrons in an atom's highest occupied electron shell; these are the electrons lost when the positive ions considered here form.
Used by Edexcel
Specification 6.9 · Paper 1
Revise: Ion FormationTo form a positive ion, an atom loses one or more of its outer electrons. The protons do not leave the nucleus during this process.
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