IB Chemistry Sub-topic S2.2 Definitions
This page contains our IB Chemistry definitions for sub-topic 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
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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
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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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