VSEPR
Hybrid Orbitals
Multiple Bonds
MO Theory Part I
MO Theory Part II
100
This is the electron-domain geometry of PF3.
What is tetrahedral? JK
100
The concept of mixing atomic orbitals to form new orbitals suitable for describing atomic bonding properties.
What is hybridization? RM
100
The longest and weakest bond type.
What is a single bond? AH
100
The combination of atomic orbitals from different atoms in a molecule.
What is MO or molecular orbital? HMO
100
This type of substances appears to have a larger mass when weighed in a magnetic field.
What is a paramagnetic substance? AH
200
This is the molecular geometry of the molecule IF5.
What is square pyramidal? RM
200
The hybrid orbital found in molecules with a trigonal planar electron domain.
What is sp2? AH
200
The covalent bond in which overlap regions lie above and below the internuclear axis. These is no probability of finding an electron of this bond on the internuclear axis.
What is the pi bond? RM
200
____ means there are no unpaired electrons. _____ means there are unpaired electrons.
What are diamagnetic and paramagnetic, respectively? JK
200
Out of CN+, CN, and CN-, this has the strongest C-N bond.
What is CN-? HMO
300
The molecular structure of NH3.
What is tetrahedral? HMO
300
The hybridization of the carbon atom in methane.
What is sp3? JK
300
The electron in pi bonds that extend over more than two atoms are said to be this.
What is delocalized? AH
300
1/2 (# of bonding electrons - # of antibonding electrons)
What is bond order? JK
300
1 means a single bond, 2 means a double bond, 3 means a triple bond, 0 means the molecule does not exist.
What is bond order? RM
400
As the number of these increase, the bond angles decrease.
What is nonbonding electron pairs? AH
400
Name the five common electron-domain geometries and the modes of hybridization associated with each.
What are linear (sp), trigonal planar (sp2), tetrahedral (sp3), trigonal bipyramidal (sp3d), and octahedral (sp3d2)? HMO
400
This usually indicates delocalized pi bonds.
What are multiple resonance structures? JK
400
This orbital is lower in energy, the electrons in this orbital are attracted to both nuclei, and holds the molecule together in a covalent bond. A different orbital is higher in energy, is denoted by an asterisk and is on the opposite side of the atom from the first orbital. (name both)
What are the bonding and antibonding orbitals? RM
400
The bond order of CN+.
What is 2? JK
500
The bond angles of a molecule with five bonded regions and one unbonded region.
What are 90 degrees vertical and 90 degrees horizontal angles? HMO
500
Octahedral, square pyramidal, square planar.
What are the possible molecular structures for molecules with a hybridization of sp3d2? JK
500
The orbitals used for forming pi bonds.
What are p and d orbitals? HMO
500
The σ(2p) MO is lower in energy than the π(2p) MO. This indicates that the substance is diamagnetic or paramagnetic?
What is paramagnetic? AH
500
The order of molecular orbitals in a molecular orbital diagram for Ne2.
What is σ1s σ*1s σ2s σ*2s σ2p π2p π*2p σ*2p? RM
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