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Quantum Numbers and Electron Configurations

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					Quantum Numbers and Electron Configurations 1. Arrange the quantum numbers in order, from lowest energy to highest energy. a. 3 1 0 +1/2 b. 1 0 0 +1/2 c. 4 3 -2 -1/2 d. 4 3 -3 -1/2 e. 2 1 +1 -1/2 f. 2 0 0 +1/2

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2. Write the quantum numbers that follow each of the following quantum numbers. a. 3 0 0 +1/2 ___________________ c. 4 2 -2 +1/2 ___________________ b. 3 1 1 -1/2 ___________________ d. 6 0 0 -1/2 ___________________

3. What are the quantum numbers for the electrons with the following single electron configurations? i.e. 2s2 = 2 0 0 -1/2 (the 2nd electron that fills a 2s orbital) a. 3p2 b. 3d8 c. 6s1 d. 4p5 d. 5f8

4. What neutral atoms have the following electron configurations? a. 1s22s22p63s23p3 b. 1s22s1 c. 1s22s22p63s23p64s23d4 d. 1s22s22p63s23p64s23d104p5

5. What do the electron configurations of all the noble gases except helium have in common?

6. Why is helium stable, even though it has a different electron configuration than the other noble gases?

7. Write the electron configurations for the following ions. a. Rb+ b. Be2+ c. S2d. Br
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8. What does each of the four quantum numbers of an electron tell you about that particular electron?


				
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