experiment 2 Flashcards
1
Q
how to write:
- monoatomic cations
- polyatomic cations
- anions
A
- NO brackets
- W brackets
- W backets
2
Q
Central Atom Requirements (4)
A
- Not H
- Less electronegative
- octet followers (C, O, N, F)
- 0 formal charge
3
Q
what do you call structures will more than 1 possible LEWIS STRUCTURE
and what symbol to signify
A
Resonance Structures
double-ended arrows
4
Q
EN values BOND POLARITY
A
< 0.5 non polar
0.5 - 1.9 polar
> 1.9 ionic
5
Q
RULE for negative formal charges
A
must be on the MORE ELECTRONEGATIVE ATOM
6
Q
Electron Pair Geometry VS Molecular
A
EPG = overall arrangement of all e- groups around central atom
MG = arrangement of bonding pairs around
7
Q
A X E notation meaning
A
A - central atom
X - # of bonds
E - # of e- pairs
8
Q
Formal Charge formula
A
of valence e - # of e- and bonds