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.

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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. 1^{st} ionization energy

c. 2^{nd} ionization energy

5. What is the relative 1^{st} 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 C_{4}H_{8} [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 }