Bonding Flashcards
Covalent Bond
The electrostatic attraction between a shared pair of electrons and the nuclei of the atoms making up the bond
Coordinate Covalent Bond
a type of covalent bond in which both electrons come from the same atom - also called a dative covalent bond
Hydrogen Bonding
An intermolecular force resulting from the interaction of a lone pair on a very electronegative atom in one molecule with an H atom attached to N/O/F on another molecule: these forces may also occur intramolecularly.
Intermolecular forces
Forces between molecules
Intramolecular forces
forces within a molecule - usually covalent bonding
Ionic Bonding
The electrostatic attraction between oppositely charged ions
London (dispersion) Force
intermolecular forces resulting from temporary dipole-induced dipole interactions
Metallic bonding
The electrostatic attraction between positive ions in a metallic lattice and the delocalized electrons
Pi Bond
A bond formed by the sideways overlap of parallel P orbitals: the electron density in the pi bond lies above and below the internuclear axis
Sigma Bond
a bond formed by the axial (head-on) overlap of atomic orbitals; the electron distribution in a sigma bond lies mostly along the axis joining the 2 nuclei
Polar Molecule
a molecule in which one end is slightly positive relative to the other; whether a molecule is polar or not depends on the differences in electronegativity of the atoms and the shape of the molecule
Resonance Structure
Is one of several Lewis structures that can be drawn for some molecules/ions
VAN DER WAALS’ Forces
the collective name given to the forces between molecules and includes London (dispersion) forces, dipole-dipole interactions, and dipole-induced interactions but not hydrogen bonding and ion-dipole interactions
