Lecture 18 Flashcards
1
Q
Molecules w electron deficiency
A
B, Be
2
Q
Free radical
A
Molecule w an odd # of electrons
- very reactive
3
Q
Non metals for period 3 >=
A
They have a d orbital so they can accept additional electrons
4
Q
Resonance hybrid
A
A weighted average of all significant resonance contributors depicting the true electronic structure of a molecule
5
Q
Delocalized electrons in resonance structure
A
Used to show delocalized electrons
6
Q
Bond fraction
A
Number of bond/ number of places to put them
7
Q
Bond order
A
The amount of bonds between two atoms
8
Q
Formal charge equation
A
- use box method
FC = Valence electrons -0.5(bonding electrons) - lone pairs
9
Q
Choosing the more important resonance form
A
- smallest formal charge
- avoid like charges on adjacent atoms
- more negative formal charge should reside on a more electronegative atom
