chapter 9 Flashcards
(8 cards)
1
Q
single?
A
1 sigma bond
2
Q
double?
A
1 sigma 1 pi
3
Q
triple?
A
1 sigma 2 pi
4
Q
what are sigma bonds ?
A
1bond of any multiple bond
1. allow for free rotation
2. directly between the nuclei
3. strongest kind of bond
5
Q
what are Pi bonds?
A
remaining bonds of a multiple (leftover after the one sigma)
1. do not allow free rotation
2. not directly between nuclei
3. impart rigidity to the molecule
4. form between p orbitals turned sideways
TWO REGIONS OF OVERLAP
6
Q
a typical triple bond consists of?
A
one sigma bond and 2 Pi bonds
7
Q
a typical double bond consists of ?
A
one sigma and one pi
8
Q
according to the valence bond theory which orbitals overlap in the formation of the bod HCl?
A
1s on H and 3p on Cl
