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Chap 8 questions - The electron configuration of Cl is(the Periodic Table should help you a 1s

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The electron configuration of Cl - is (the Periodic Table should help you): a. 1s<sup2< sup="">2s 2 2p 6 3s 2 3p 5 </sup2<> b. 1s 2 2s 2 2p 6 3s 2 3p 6 c. 1s 2 2s 2 2p 6 3d 10 d. 1s 2 2s 2 2p 6 e. 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 How many unpaired electrons are present in ground-state atomic nitrogen? a. 0 b. 2 c. 4 d. 3 e. 5 Which orbital is being filled in the lanthanide series? a. 4f b. 4d c. 5f d. 5d e. 3p Which of the following elements is not a metal? a. Na b. Cu c. Pb d. Mg e. C Which of the following pairs is isoelectronic? a. Li, Be 2+ b. F - , Na + c. O, F - d. Li + , Na + Which of the following has the largest radius? a. Na + b. Li + c. Cl - d. Cl e. H Which of the following has the largest first electron affinity (ignore sign, just magnitude)? a. F b. Li c. Na d. Br e. Ne The electron configuration of S 2- is (the Periodic Table should help you):
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a. 1s 2 2s 2 2p 6 3s 2 3p 5 b. 1s 2 2s 2 2p 6 3s 2 3p 6 c. 1s 2 2s 2 2p 6 3d 10 d. 1s 2 2s 2 2p 6 e. 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 How many unpaired electrons are present in ground-state atomic oxygen? a. 0 b. 2 c. 4 d. 3 e. 5 Which of the following has the largest radius? a. K b. K + c. Cl - d. Cl e. Ne Which of the following has the most favorable first electron affinity? a. F b. Li c. Na d. Br e. Ne Which of the following has the lowest ionization energy? a. Li b. K + c. K d. Ne e. O How many unpaired electrons are there in Arsenic (As)? a. 0 b. 1 c. 2 d. 3 e. 4 An element has an electron configuration of 1s 2 2s 2 2p 6 3s 2 . Which electrons experience the greatest effective nuclear charge, and which experience the most shielding, respectively? greatest effective nuclear charge most shielding (a) 1s 2 electrons 2s 2 electrons (b) 1s 2 electrons 3s 2 electrons
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(c) 2s 2 electrons 3s 2 electrons (d) 3s 2 electrons 1s 2 electrons (e) 3s 2 electrons 2p 6 electrons Choose the electron configuration that results when the outermost electron is ionized from the Se atom. a. [Ar]4s 2 3d 10 4p 4 b. [Ar]4s 2 3d 10 4p 3 c. [Ar]4s 2 3d 10 4p 5 d. [Ar]4s 1 3d 10 4p 3 e. none of the above are correct Which of the following has the highest electron affinity? a. Cs b. Na c. Si d. Ne e. F Which of the following has the largest first ionization energy? a. Cs b. Na c. Si d. Ne e. F Which of the following elements has the most nonmetallic character? a. F b. Ge c. Hg d. In e. S What is the electron configuration of Fe 3+ ? a. [Ar]4s 2 3d 9 b. [Ar]4s 1 3d 5 c. [Ar]4s 2 3d 3 d. [Ar]3d 5 e. [Ar]3d 6 Which of the following elements is the least electronegative? a. F b. Ga c. Os d. P e. Ra Which of the following has the largest size?
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a. O b. F c. Al 3+ d. K + e. Rb Which of the following is the correct electron configuration for Ge atoms in the ground state? a.
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This note was uploaded on 02/05/2012 for the course CHEM 115 taught by Professor L during the Fall '02 term at Purdue University-West Lafayette.

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Chap 8 questions - The electron configuration of Cl is(the Periodic Table should help you a 1sThis preview shows document pages 1 - 5. Sign up to view the full document.

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