Ch. 11 & 12 test                      80 points                                                                      chemistry

1. Sketch the following atomic orbitals (AO) and show its relationship with the x-, y-, and / or z- axis.  [10 points]

a. px - AO

b. dxy - AO

2. Using the short-hand notation, sketch the orbital diagram of  ___.  [10 points]

 a. Silicon

b. Bismuth

3. In regards to the bromine atom,  [15 points]

 a. what is the electron configuration

 b. Identify the core electrons (or inner shell electrons or kernel electrons)

 c. Identify the electrons involved in a chemical bond

4. Which atom, sodium or magnesium, has the larger atomic size ?  justify / rationalize your answer.  [10 points]

5. Which atom, magnesium or calcium, has the larger first ionization energy ?  justify / rationalize your answer.  [10 points]

6. Is SF4 a polar or nonpolar compound ?  justify your response; include a sketch of the molecule’s shape to support your answer.   [15 points]

7. Sketch the molecular shape of CH2O; what is the name of the molecule’s shape and bond angle(s) ?  [10 points]