Bonding and Orbitals Flashcards
What do atomic orbitals form when they combine?
Molecular orbitals
When is a bonding orbital formed?
When the signs of the wave functions of the atomic orbitals are the same
When is an antibonding orbital formed?
When the signs of the wave functions of the atomic orbitals are different
Which orbitals are more stable: bonding or antibonding orbitals?
Bonding orbitals
What are the s and p characters of an sp3 orbital?
25% s and 75% p
What are the s and p characters of an sp2 orbital?
33% s and 67% p
What type of bonds do sp3 orbitals form?
Single
What type of bonds do sp2 orbitals form?
Double
What type of bonds do sp orbitals form?
Triple
What are the s and p characters of an sp orbital?
50% s and 50% p
How do the orbitals of resonance structures differ?
Differ in their placement of electrons in hybridized p orbitals
What is the true electron density when a molecule has different resonance structures?
A weighted average of the resonance structures
What geometry do sp3 orbitals form?
Tetrahedral with 109.5 bond angles
What geometry do sp2 orbitals form?
Trigonal planar with 120 bond angles
What geometry do sp orbitals form?
Linear with 180 bond angles
