Topic 2- Lecture 10 Flashcards
Orbitals morph together to form _____________ hybrid orbitals.
Identical
2 charge clouds
sp
3 charge clouds
sp2
4 charge clouds
sp3
5 charge clouds
sp3d
6 charge clouds
sp3d2
Single bonds have…
1 σ bond
σ bond
Head to head overlap
Double bonds have…
1 σ bond
1 π bond
π bond
Side to side overlap
Triple bonds have…
1 σ bond
2 π bonds
Single bonds are ________ to spin on an axis.
Able
Double bonds ___________ single bonds from ___________ on the axis.
Prevent
Spinning
Cis isomer
Atoms from the same element of the central atom stay on the same side
Trans isomer
Atoms from the same element as the central atom are not all on the same side
Stronger bonds
σ
Longer bond length
π
Greater bond energy
σ
Weaker bonds
π
Shorter bond lengths
σ
Weaker bond energy
π
Sharing electrons give the more electronegative element a slightly negative charge and the less electronegative element as slightly positive charge
Bond polarity
+δ
-δ
Partial charges
More density is added to the more ___________ element.
Electronegative
To know if a molecule is polar, it has to have…
Polar bonds
A specific shape
High electronegativity | | | \/ Low electronegativity
F
O
N
Bond is on the same axis
σ
Solution to problems with Valence bond Theory
Hybrid Orbitals