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Molecular Models
Question | Answer |
---|---|
Ionic Bond | Transfer of electrons so that both have an octet EN greater than or equal to 1.67 |
Covalent Bond | Share electrons so they both have an octet EN less than 1.67 |
Metallic Bond | Dipole, polar, alloys, protons in sea of electrons, good conductors of heat and electricity |
Dipole | Polar, covalent bond, net pull |
Vander Waals Forces | Weak, intermolecular, attractive forces |
London Dispersion Forces | DD (strongest), DN (intermediate), or NN (weakest) |
Molecule | Two or more atoms |
Lewis Structure | Number of valence electrons for all atoms in a molecule, organized, complete octets |
Sigma Bond | End-to-end single, covalent bonds |
Pi Bond | Covalent, sideways/parallel bonds |
Single Bond | Covalent, 2 shared electrons (1 sigma) |
Double Bond | Covalent, 4 shared electrons (1 sigma, 1 pi) |
Triple Bond | Covalent, 3 shared electron pairs (1 sigma, 2 pi) |
Resonance | The average of all Lewis structures for a molecule |
VSEPR | Determines shape and angle from orbital position |
Hybridized Orbital | The blending of two or more orbitals |
Molecular Orbitals | New orbitals -> new molecule Bonding and anti-bonding |
Bond Order | Bond strength (B-A)/2 |
Paramagnetic | 1 or more unpaired electrons Attracted to magnetic field |
Diamagnetic | No unpaired electrons Not attracted to magnetic field |
Coordinate Covalent Bond | Shared, come from the same atom |
Bonding Orbital | Molecular orbital, constructive interference, less energy, more stable |
Anti-bonding Orbital | Molecular orbital, destructive interference, more energy, less stable * |