Chemistry Ch 9.1

Question 1

What does the localized electron model view a molecule as?

Answer 1

It views it as a collection of atoms that are bound together by sharing the electrons in their orbitals.

Question 2

In the hybridization table, what components do we take into consideration?

Answer 2

The # of electron domains, molecular structure (lewis structure), overall electron geometry, ideal bond angle, # of lone pairs, molecular geometry, actual bond angle, polarity, hybridization.

Question 3

Fill in the table for CO2.

Answer 3

of electron domains: 2

overall electron geometry: Linear
ideal bond angle: 180 degrees
#of lone pairs: 0
molecular geometry: Linear
actual bond angle: 180 degrees
polarity: non-polar
hybridization: sp

Question 4

Fill in the table for HF

Answer 4

of electron domains:

Question 5

Fill in the table for H20

Question 6

Fill in the table for CH4

Question 7

Fill in the table for NH3

Question 8

Fill in the table for BH3

Question 9

Fill in the table for XY2 when X has 4 V.A and Y has only 1

Question 10

What are the 2 types of bonds?

Answer 10

Sigma and pi bonds.

Question 11

What types of bonds do single, double, and triple have?

Answer 11

Single -> sigma
Double -> sigma, and pi
Triple -> sigma, pi, and pi

Question 12

What are bonds, and what are antibonds?

Answer 12

Bonds are the stabilizing interaction between atoms (lowering the energy), whereas antibonda re the destabilizing interactions between the atoms (increasing the energy).

Question 13

Diamagnetic vs paramagnetic:

Answer 13

Diamagnetic: no unpaired electrons
Paramagnetic: at least 1 upaired electron

Question 14

How do you calculate bond order?

Answer 14

(Bond Order Electrons - Anti Bond Order Electrons)/2