Valence Bond Theory
What is the central Principle of VB Theory?
a covalent bond will form when the orbitals from two atoms overlap, and a pair of electrons will occupy the region between the two nuclei.
What did Pauling Propose?
Orbital Hybridization
What is a sigma bond?
Single bond due to the overlapping of 2 orbitals, it holds only 2 e- from each of overlapping orbitals.
Is a way to form a sigma bond:
When 1 s and 1 p orbital overlap, form a sigma bond.
The # of hybrid orbitals...
is the same # as the atomic orbitals used to create them
Pi Bond...
overlaping orbitals must be parallel to overlap
The greater the overlap of orbitals...
the stronger the bond
What is Sp3 hybridization?
The mix of 1s orbital with 3p atomic orbitals, forming 4 sp3 hybrid orbitals for an atom.
How's double bound made?
Is made up of one sigma and one pi bond
What happens when 2s orbitals overlap?
It forms a bond called a sigma bond
What is hybridization?
Orbitals in the molecule are different from those on individual atoms (orbital mixing).
What's bond enthalpy?
When chemical reactions occur energy will be required or released
VB Theory is also known as
Hybridization of Atomic Orbitals
octahedral geometry is
sp3d2 hybridization
How's a triple bond made?
Is made up of one sigma bond and two pi bonds.