Name:  _____________________                              date:  __________________               period: _______

Ch. 11 & 12 test                      75 points                                                                      honors 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

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

a. Silicon

 b. Bismuth

4. 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

5. Which atom, sodium or magnesium, has the larger atomic size ?  justify / rationalize your answer.  [5 points]

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

7. Is SF4 a polar or nonpolar compound ?  justify your response.   [10 points]

8. Sketch all Lewis structure(s) of  ___.  [10 points]

a.  Sulfate ion

b. Silicon dioxide

 9. Sketch the molecular shape of CH2O.  [5 points]