exam 3a f10 chem 102

exam 3a f10 chem 102 - Name Date 1 is the correct electron...

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Name: __________________________ Date: _____________ 1. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 3 d 6 is the correct electron configuration for which of the following atoms? A) Se B) Fe C) Te D) Ru E) none of these 2. Which of the following combinations of quantum numbers is not allowed? A) n = 1, l = 1, m l = 0, m s = 1 2 B) n = 3, l = 0, m l = 0, m s = - 1 2 C) n = 2, l = 1, m l = -1, m s = 1 2 D) n = 4, l = 3, m l = -2, m s = - 1 2 E) n = 4, l = 2, m l = 0, m s = 1 2 3. Which of the following frequencies corresponds to light with the longest wavelength? A) 3.00 x 10 13 s –1 B) 4.12 x 10 5 s –1 C) 8.50 x 10 20 s –1 D) 9.12 x 10 12 s –1 E) 3.20 x 10 9 s –1 4. Which of the following are paramagnetic? A) Kr B) Br ¯ C) Se ¯ 2 D) Rb + Page 1
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E) none of the above 5. For a one electron atom, which of the following transitions does the light emitted have the lowest frequency? A) n = 4 to n = 3 B) n = 4 to n = 2 C) n = 4 to n = 1 D) n = 3 to n = 2 E) n = 2 to n = 1 6. Which of the following statements is true? A) The krypton 1 s orbital is smaller than the helium 1 s orbital because krypton's nuclear charge draws the electrons closer. B) The krypton 1 s orbital is larger than the helium 1 s orbital because krypton contains more electrons. C) The krypton 1 s orbital is smaller than the helium 1 s orbital because krypton's p and d orbitals crowd the s orbitals. D)
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exam 3a f10 chem 102 - Name Date 1 is the correct electron...

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