CHM 1100C EXAM 4 QUESTIONS WITH CORRECT
ANSWERS
covalent bond - ✔✔ 0-0.4
Ionic bond - ✔✔ > or = 2
polar covalent bond - ✔✔ 0.4<and <2
incomplete octet - ✔✔ stable with fewer than eight electrons and include H, He, Li, Be, and B
odd electron - ✔✔ odd number of valence electrons
formal charge equation - ✔✔ (valence electrons) - (lone pairs) - (1/2) bonding electrons
lattice energy equation - ✔✔ LE = k((Q1Q2)/r) , where k is constant, q1 and q2 are charges of ions and r
is shortest distance between centers of cation and anion
Hybridization - ✔✔ # of lone pairs + # of bonded atoms
Hybridization list - ✔✔ sp,sp2,sp3,sp3d,sp3d2
sigma and pi bonds - ✔✔ single bond: 1 sigma
double bond: 1 sigma, 1 pi
triple bond: 1 sigma, 2 pi
bond order equation - ✔✔ 1/2 (# of bonding electrons - # of antibonding electrons)
ANSWERS
covalent bond - ✔✔ 0-0.4
Ionic bond - ✔✔ > or = 2
polar covalent bond - ✔✔ 0.4<and <2
incomplete octet - ✔✔ stable with fewer than eight electrons and include H, He, Li, Be, and B
odd electron - ✔✔ odd number of valence electrons
formal charge equation - ✔✔ (valence electrons) - (lone pairs) - (1/2) bonding electrons
lattice energy equation - ✔✔ LE = k((Q1Q2)/r) , where k is constant, q1 and q2 are charges of ions and r
is shortest distance between centers of cation and anion
Hybridization - ✔✔ # of lone pairs + # of bonded atoms
Hybridization list - ✔✔ sp,sp2,sp3,sp3d,sp3d2
sigma and pi bonds - ✔✔ single bond: 1 sigma
double bond: 1 sigma, 1 pi
triple bond: 1 sigma, 2 pi
bond order equation - ✔✔ 1/2 (# of bonding electrons - # of antibonding electrons)
