final Flashcards
(9 cards)
1
Q
aufbau principle
A
lowest energy orbitals will fill first
2
Q
hund’s rule
A
electrons will fill lower energy orbitals first instead of pairing up in the same one
3
Q
formal charge equation
A
[bonds formed] - [nonbonding pairs]
4
Q
resonance form rules (most important to least important)
A
- has as many octets as possible
- has as many bonds as possible
- has the negative charge on the most electronegative atom
- has as little charge separation as possible (preferably 0)
5
Q
when both resonance forms obey the octet rule, the major contributor is the one that___
A
has the most bonds or has the negative charge on the most electronegative atom
6
Q
condensed structural formula
A
similar to the lewis structure, but it omits the bonds (only leaves them if the atom is on top of the main chain)
7
Q
molecular formula
A
gives the full amount of atoms
ex- N2O4
8
Q
empirical formulua
A
the simplest ratio of the molecular formula
ex- N2O4 would empirically be NO2
9
Q
A
