Lecture 16 (10am) Chapter 8 October 27 2009

Lecture 16 (10am) Chapter 8 October 27 2009 - (E) The...

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Reminder: Exam tomorrow!! (Wednesday October 28, 8am-8:50am) Exam Material: Chapter 5, Chapter 6 and Chapter 7.1 – 7.3 (the first three sections of Chapter 7) (Section 7.4 will not be included on this exam) Please go to the correct exam room for your section, bring a number 2 pencil and a scientific calculator (no graphing calculators)
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Chapter 8 continued Lecture 16 October 27, 2009
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Effect of Nuclear Charge (Z) on Orbital Energy
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Shielding
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Penetration
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Which one of the following statements about orbital energies is incorrect? (A) In the hydrogen atom, the energy of an orbital depends only on the value of the quantum number n . (B) In many-electron atoms the energy of an orbital depends on both n and l . (C)Inner electrons shield outer electrons more effectively than do electrons in the same orbital. (D)The splitting of sublevels in many-electron atoms is explained in terms of the penetration effect.
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Unformatted text preview: (E) The energy of a given orbital increases as the nuclear charge Z increases. Energy Diagrams and Electron Configuration use the organization of the periodic table to help you place electrons in orbitals of increasing energy What is the electron configuration of antimony, Sb, Z = 51? (A)[Kr]5 s 2 4 d 13 (B) [Kr]5 s 2 4 d 10 5 p 3 (C) [Kr]5 s 2 5 p 6 4 d 7 (D)[Kr]5 s 2 5 d 10 5 p 3 (E) [Kr]5 s 2 4 d 10 5 p 6 The electronic structure 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 3 d 7 refers to the ground state of A. Pd B. Co C. Zn D. Ni E. Cu Which of the following electron configurations is correct for the excited state of an element? A. [Kr]5 s 1 B. [Ar]4 s 2 3 d 1 C. [Ne]3 s 1 3 p 1 D. [He]2 s 2 2 p 5 E. [Ne]3 s 2 3 p 1 Go to the following website to sing along again with The Elements song you know you want to!! www.privatehand.com/flash/elements.html...
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This note was uploaded on 10/22/2011 for the course CHEM 1200 taught by Professor Mcintosh during the Spring '08 term at Rensselaer Polytechnic Institute.

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Lecture 16 (10am) Chapter 8 October 27 2009 - (E) The...

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