IB Chemistry S2.2 Definitions
This page contains our IB Chemistry definitions for S2.2. By learning each one of these definitions, you will fully cover the content for IB Chemistry 'Further covalent bonding'.
HL
electron delocalizatoin
The ability of a molecule to share electrons between multiple atoms due to aligned p-orbitals
electron domain
The number of bonding and non-bonding pairs of electrons
HL
hybridization
The mixing of bonding orbitals depending on the number of electron domains
HL
radical
Atom with a lone electron, making it highly reactive
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radical species
Atoms with a lone electron, making them highly reactive
resonance hybrids
A molecule that has more than one correct lewis structure
HL
π-bond
The sideways overlap of two p-orbitals resulting in an electron density lying above and below the internuclear axis
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σ-bond
The direct head-on overlap of two orbitals resulting in an electron density lying along the internuclear axis that forms a single bond
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