F11_Exam%202%20review%20questions-1

F11_Exam%202%20review%20questions-1 - CHEM 101 Fall 11 Exam...

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1 CHEM 101 Fall 11 Exam 2 Review 1) Calculate the energy change that occurs when an electron falls from the n = 4 to the n = 2 energy level in a hydrogen atom. A) −1.36 × 10 −19 J B) −4.09 × 10 −19 J C) 5.45 × 10 −19 J D) 4.09 × 10 −19 J E) −5.45 × 10 −19 J Answer: B 2) How many orbitals are there in the 3d subshell? A) 1 B) 3 C) 5 D) 7 E) 14 Answer: C 3) How many electrons can be contained in the 2p subshell? A) 1 B) 2 C) 3 D) 4 E) 6 Answer: E 4) Which of the following is a list of allowed quantum numbers for an electron? A) n = 1, l = 1, m l = 0, m s = ½ B) n = 2, l = 0, m l = 1, m s = ½ C) n = 3, l = 0, m l = 0, m s = ½ D) n = 4, l = 3, m l = 4, m s = -½ E) n = 4, l = 2, m l = 1, m s = 1 Answer: C 5) Which species is isoelectronic with Cl? A) P 2- B) S 2- C) Cl - D) Ar E) K + Answer: A
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2 6) What is the correct ground state electron configuration for bromine? A) 1s 2 2s 2 2p 5 B) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 9 4s 2 4p 6 C) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 5 D) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 5
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This note was uploaded on 01/15/2012 for the course CHEMISTRY 101 taught by Professor King during the Spring '11 term at Drexel.

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F11_Exam%202%20review%20questions-1 - CHEM 101 Fall 11 Exam...

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