Molecular Orbital Theory definitions Flashcards
Molecular Orbital Theory definitions
You can tap to flip the card.
Control buttons has been changed to "navigation" mode.
1/15Skip to main content
Molecular Orbital
A region in a molecule where atomic orbitals combine, forming bonding or antibonding interactions. Bonding Molecular Orbital
A molecular orbital with high electron density that promotes bond formation and increases stability. Antibonding Molecular Orbital
A molecular orbital with a node of low electron density that prevents bond formation and decreases stability. Sigma (σ) Orbital
A type of bonding molecular orbital characterized by high electron density along the axis connecting two nuclei. Sigma Star (σ*) Orbital
An antibonding molecular orbital with a node, reducing electron density and bond stability. Node
A region in an antibonding molecular orbital where electron density is minimal, hindering bond formation. Aufbau Principle
A rule stating electrons fill atomic orbitals from lowest to highest energy levels. Pauli Exclusion Principle
A principle stating each orbital can hold two electrons with opposite spins. Hund's Rule
A rule stating degenerate orbitals are singly filled before pairing electrons. Electron Delocalization
The spreading of electrons across multiple atoms in a molecule, enhancing stability. Valence Electrons
Electrons in the outermost shell of an atom, involved in forming molecular orbitals. Atomic Orbital
A region around an atom's nucleus where electrons are likely to be found. Spin Quantum Number
A quantum number indicating the intrinsic angular momentum of an electron. Degenerate Orbitals
Orbitals with the same energy level, filled singly before pairing according to Hund's Rule. Electron Orbital Diagram
A visual representation of electron distribution in atomic or molecular orbitals.
01:16
