BRAINCAKEMore examples.
One bonding pair (linear):
carbon monoxide C≡O HF cyanide ion C≡N- oxygen O=O
Two bonding pairs (linear):
BeI2 carbon dioxide O=C=O carbon disulfide S=C=S
Two bonding pairs and one or two lone pairs (non-linear or bent):
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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.
- Lone pair
- A pair of outer-shell electrons that is not involved in bonding.
- Electron pair repulsion theory
- The theory that electron pairs around a central atom arrange themselves as far apart as possible to minimise repulsion, determining the shape of a molecule or ion.
More in Shapes and Intermolecular Forces
- Electron Pair Repulsion Theory
- Three and Four Electron Pairs
- BF3 and SF6 and PCl5
- Polyatomic ions.
- Electronegativity
- Bond Polarity
- Polar Solvents and Solubility
- Induced Dipole-Dipole Interactions (London Forces)
All 13 lessons in Shapes and Intermolecular Forces · All OCR AS-level Chemistry topics