Ch. 6 & 7 atomic orbital & periodic trends    test     [100 points]     AP Chem

 

For problems involving calculations, show your work in an organized manner, include any relevant equation (or formula and conversion factor(s)), put the proper units in your calculations / answer, and have the proper number of significant figures in your answer.              

 

Academic Honesty:   The answers on this test are my own and I am using only the allowed set of notes as described in the syllabus.  I have not discussed the test questions with anyone before or during the test nor have I seen the test questions prior to the exam.  If you violate any of the preceding items or do not sign, your semester grade is a F.

 

                                                                                                Signature:  ___________________

 

1.  Draw the orbital diagram for __, then identify its valence and inner shell electrons;  use the “short-cut” notation.  [20 points]

 

a.  phosphorus

 

b.  tin

 

 

2.  List all 4 possible quantum numbers for an electron in the 3d atomic orbital.  [10 points]


3.  What is the wavelength (in meters) of the photon in the emission from the n = 4 to n = 2 electron energy level in the hydrogen atom ?  [20 points]

 

 

4.  Using the magnesium atom as your example and a chemical equation, as appropriate, describe __.  [15 points]

a.  electron affinity

 

b.  1st ionization energy

 

c.  2nd ionization energy


 

5.  What is the relative 1st ionization energy between  ___ ?  Clearly rationalize your response. [20 points]

a.  magnesium versus aluminum

 

b.  carbon versus nitrogen

 

 

6.  old topics  [15 points]

a.  draw 4 isomers of C4H8  [8 points]

 

 

b.  solve for k, in terms of moles, L, and seconds, where   [7 points]

 

 (5 micromoles / L) / minute =  k  (5 millimole / L)2