Chem 6A_Sample Questions Exam-2 to print

Chem 6A_Sample Questions Exam-2 to print - CHEM 6A SAMPLE...

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1 CHEM 6A SAMPLE QUESTIONS EXAM-2 1. Among the following, P 3– , Cl , K + , Cl, N 3– the one with the largest atomic radius is: a) P 3– b) Cl c) K + d) Cl e) N 3– 2. Which of the following has a ground state configuration of [Kr] 5s 2 4d 10 ? a) In + b) Ag + c)Pd d) Sn 4+ e) non-of the previous 3. The number of electrons that can reside in the n=5 shell is: a) 50 b)80 c)36 d)72 e)2 4. What is the longest wavelength associated with the Lyman series in hydrogen? a) 610 nm b)465 nm c) 657 nm d)122 nm e) 223 nm 5. Which of the following is a legitimate (i.e. allowed) set of n, l, m l , and m s quantum numbers? a) 4, 3, 0, 1 b) 4, 2, 3, ½ c) 4, 4, 3, ½ d) 4, 2, 1, ½ e) 4, 0, 0, ½ 6. Of the following 5 elements, which has the greatest number of unpaired electrons: Al, S, Cl, P, Si a) Cl b) Al c) P d) Si e) S 7. When Light of wavelength 400 nm strikes the surface of metallic cesium electrons with kinetic energy of 1.54x10 -19 J are ejected. The work function of the metal in joules is: a) 3.43x10 -19 b) 3.25x10 -18 c) 2.91 x 10 -19 d) 7.5x10 -14 e) 4.97x10 -19 8. What is the de Broglie wavelength of a baseball of mass 0.17 kg traveling at a velocity of 30 m / s ? a) 1.52x10 -10 m b) 2.8x10 -30 m c) 1.52x10 -29 m d) 2.80x10 -19 m e) 1.3 x 10 - 34 m 9. Of the following, the atom with the greatest electron affinity is the one with the electron configuration: a) 1s 2 2s 2 2p 6 3s 2 3p 4 b) 1s 2 2s 2 2p 6 3s 1 c) 1s 2 2s 2 2p 6 3s 2 3p 3 d) 1s 2 2s 2 2p 6 3s 2 3p 5 e) 1s
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This note was uploaded on 03/04/2011 for the course CHEM 6A taught by Professor Pomeroy during the Spring '08 term at UCSD.

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Chem 6A_Sample Questions Exam-2 to print - CHEM 6A SAMPLE...

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