Exam 4 Flashcards
1
Q
Formal Charge Equation
A
FC = valence electrons - # of lone pair electrons - # of bonds
2
Q
Which is bigger: cations or anions?
A
Anions
3
Q
Why does 4s have less energy than 3d
A
If you calculate n + l, 4+0 is less than 3+2
4
Q
Bond enthalpy equation
A
sum of bonds in reactants - sum of bonds in product
5
Q
exceptions to octet rule
A
Boron(6) and Sulfur(expanded) and Xenon(expanded)
6
Q
free radicals
A
odd number of electrons, cause oxidative damage
7
Q
effective nuclear charge
A
Z(eff) = protons - core electrons
Pull of nucleus on surrounding electrons
