Chemical Bonding & Molecular Structure
60 terms · page 3 of 3
Sigma Bond
A covalent bond formed by the head-on overlap of atomic orbitals, with electron density concentrated along the internuclear axis.
Chemical Bonding & Molecular Structuresp Hybridisation
The mixing of one s and one p orbital to give two linear hybrid orbitals at 180° to each other.
Chemical Bonding & Molecular Structuresp² Hybridisation
The mixing of one s and two p orbitals to give three hybrid orbitals in a plane at 120° to each other.
Chemical Bonding & Molecular Structuresp³ Hybridisation
The mixing of one s and three p orbitals to give four hybrid orbitals directed towards the corners of a tetrahedron.
Chemical Bonding & Molecular Structuresp³d and sp³d² Hybridisation
Hybridisation schemes involving d orbitals that give five trigonal bipyramidal or six octahedral hybrid orbitals.
Chemical Bonding & Molecular StructureTetrahedral Geometry
A molecular shape with four bonded atoms directed to the corners of a regular tetrahedron at 109.5°.
Chemical Bonding & Molecular StructureThree-Centre Two-Electron Bond
A bond in which a single pair of electrons is shared between three atoms rather than two.
Chemical Bonding & Molecular StructureTrigonal Bipyramidal Geometry
A shape with five bonded atoms occupying three equatorial and two axial positions around a central atom.
Chemical Bonding & Molecular StructureTrigonal Planar Geometry
A flat molecular shape with three bonded atoms arranged around a central atom at 120°.
Chemical Bonding & Molecular StructureValence Bond Theory
The bonding model in which a covalent bond forms by the overlap of half-filled atomic orbitals on adjacent atoms.
Chemical Bonding & Molecular StructureVan der Waals Forces
The collective name for the weak attractive forces between molecules arising from dipole interactions.
Chemical Bonding & Molecular StructureVSEPR Theory
The model that predicts molecular shape by arranging valence electron pairs around a central atom so their mutual repulsion is minimised.