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? 3) How many electrons can be contained in the 2p subshell? 4) Which of the following is a list of allowed quantum numbers for an electron? 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?
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