BRAINCAKEPolyatomic ions
Simple ions are formed from the loss or gain of electrons from single atoms.
An ion that contains more than one element is called a polyatomic ion.
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Key terms in this lesson
- Ion
- A positively or negatively charged atom or group of atoms, formed by the loss or gain of electrons.
More in Atoms, Ions and Compounds
- Relative Atomic Mass
- The Mass Spectrometer
- Calculating Relative Atomic Mass
- Chemical Formulae
- Chemical Equations
- Electron Shells
- Spin
- Ionisation Energy
All 17 lessons in Atoms, Ions and Compounds · All OCR AS-level Chemistry topics