Valance bond theory…
the concept that covalent bonds are formed when orbitals of different atoms overlap
Bond axis…
a region of high electron density that forms on a line and connects to nuclei
Sigma bond…
ends of orbitals overlap
A single bond is always a…
sigma bond
Sigma bonds are the ____________ type of ____________ bond
strongest, covalent
Pi bond…
sides of orbitals overlap
Pi bonds form only after…
a sigma bond forms
Pi bonds are __________ than sigma bonds
weaker
Pi bonds don’t overlap on the…
bond axis
Resonance…
- the molecule does not oscillate between the 2 shapes
- an average of the 2 bond possibilities results
Resonance formula…
total bonds/bond regions
VSEPRT stands for…
valance shell electron pair repulsion theory
An area of electron concentration can be…
- a non-bonding or lone pair of electrons
- a single bond
- a double bond
- a triple bond
Hybridization…
the process of forming new kinds of orbitals with equal energies from a combination of orbitals of different energies
4 4
tetrahedral
4 3
pyramidal
4 2
bent
4 1
linear
3 3
trig planar
3 2
bent
3 1
linear
2 2
linear
2 1
linear
two atoms that share electrons equally are…
non-polar
