Practice Midterm 1

Practice Midterm 1 - 1 1 What is the frequency associated with radiation of 4.59 x 10 cm wavelength a 6.54 x 1017 s-1 b 6.54 x 1015 s-1 c 1.53 x

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1 1. What is the frequency associated with radiation of 4.59 x 10 -8 cm wavelength? a. 6.54 x 10 17 s -1 b. 6.54 x 10 15 s -1 c. 1.53 x 10 -8 s -1 d. 13.8 s -1 e. 2.18 x 10 7 s -1 2. What is the wavelength, in nm, of light with an energy content of 550 kJ/mol? a. 0.217 nm b. 0.419 nm c. 157 nm d. 217 nm e. 6579 nm 3. Select the correct statement…The photoelectric effect: a. was discovered by Max Planck. b. describes the phenomenon of producing a beam of electrons by shining light on any metal surface. c. contradicted the view that light energy was dependent upon intensity only. d. was explained by classical physics wave theory e. results in a beam of electrons which increases in number, but not velocity, as the wavelength of incident light decreases. 4. In comparing UV and microwave electromagnetic radiation, which statement is correct? a. Photon energy for microwave > Photon energy for UV b. ν for UV > ν for microwave c. λ for UV > λ for microwave d. UV travels faster than microwave radiation in a vacuum e. two of these statements are correct 5. How many electrons would be found in the n=6 level if all possible orbitals were completely filled with electrons? a. 18 b. 32 c. 72 d. 50 e. none of these 6. The possible values of the orbital angular momentum quantum number of a 3 p electron are: a. +1/2, -1/2 b. -1, 0, +1 c. 0, 1, 2 d. 1, 2, 3 e. none of these
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2 7. The ratio of the radius of the 8 th orbit of He + to the radius of the 4 th orbit for H is: a. ¼ b. 2 c. 4 d. ½ e. 1 8. The ground state electron configuration of Au is: a. [Xe] 4f 13 5d 9 6s 2 b. [Xe] 5d 10 6s 1 c. [Xe] 5d 9 6s 2 d. [Xe] 4f 14 5d 10 6s 1 e. none of these 9. [Ar]3d 10 is the ground state electronic configuration of which species: a. Zn b. Cu 2+ c. Ge 2+ d. Ga 3+ e. none of these 10. The quantum numbers of the last electron of Antimony (Sb) could be: a. n = 5,
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This note was uploaded on 09/29/2010 for the course SCIENCE 120 taught by Professor Frenser during the Spring '10 term at McGill.

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Practice Midterm 1 - 1 1 What is the frequency associated with radiation of 4.59 x 10 cm wavelength a 6.54 x 1017 s-1 b 6.54 x 1015 s-1 c 1.53 x

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