Exam One-solutions.pdf

Exam One-solutions.pdf - 015 version last name first name...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
015 version last name first name signature Exam 1 DrRuth’s Classes · Spring 2018 (MWF class: 49760) REMEMBER: Bubble in ALL Bubblesheet information! This includes your first and last name, your UTEID, and your version number. DrRuth says: In all cases, select the answer that BEST answers the question asked. There are 400 points on this exam. Read the whole thing first and plan which to answer first because you feel confident about them. Notice the hardest ones and save them till last so you don’t use up all your time working on them. Read the questions carefully. Watch your units. Please keep your Exam copy intact (all pages still stapled). You must turn in your exam copy, plus your bubble sheet, and all scratch paper. c = 3 . 00 × 10 8 m s - 1 h = 6 . 626 × 10 - 34 J s m e = 9 . 11 × 10 - 31 kg N A = 6 . 022 × 10 23 mol - 1 Δ E = E f - E i Δ E = - 2 . 178 × 10 - 18 J Z 2 parenleftBig 1 n 2 f - 1 n 2 i parenrightBig Δ x Δ p h 4 π E = E n = - 2 . 178 × 10 - 18 J Z 2 n 2 n = 1 , 2 , 3 , · · · E n = n 2 h 2 8 mL 2 n = 1 , 2 , 3 , · · · - 0 = 1 2 mv 2 λν = c λ = h mv 1 λ = 1 . 097 × 10 7 m - 1 Z 2 parenleftBig 1 n 2 f - 1 n 2 i parenrightBig ν = 3 . 291 × 10 - 15 s - 1 Z 2 parenleftBig 1 n 2 f - 1 n 2 i parenrightBig
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Periodic Table of the Elements 1A 1 1 H 1.008 8A 18 2 He 4.00 3 Li 6.94 2A 2 4 Be 9.01 3A 13 5 B 10.81 4A 14 6 C 12.01 5A 15 7 N 14.01 6A 16 8 O 16.00 7A 17 9 F 19.00 10 Ne 20.18 11 Na 22.99 12 Mg 24.31 13 Al 26.98 14 Si 28.09 15 P 30.97 16 S 32.07 17 Cl 35.45 18 Ar 39.95 19 K 39.10 20 Ca 40.08 3B 3 21 Sc 44.96 4B 4 22 Ti 47.87 5B 5 23 V 50.94 6B 6 24 Cr 52.00 7B 7 25 Mn 54.94 8B 8 26 Fe 55.85 8B 9 27 Co 58.93 8B 10 28 Ni 58.69 1B 11 29 Cu 63.55 2B 12 30 Zn 65.38 31 Ga 69.72 32 Ge 72.64 33 As 74.92 34 Se 78.96 35 Br 79.90 36 Kr 83.80 37 Rb 85.47 38 Sr 87.62 39 Y 88.91 40 Zr 91.22 41 Nb 92.91 42 Mo 95.96 43 Tc (98) 44 Ru 101.1 45 Rh 102.9 46 Pd 106.4 47 Ag 107.9 48 Cd 112.4 49 In 114.8 50 Sn 118.7 51 Sb 121.8 52 Te 127.6 53 I 126.9 54 Xe 131.3 55 Cs 132.9 56 Ba 137.3 57 - 71 72 Hf 178.5 73 Ta 180.9 74 W 183.8 75 Re 186.2 76 Os 190.2 77 Ir 192.2 78 Pt 195.1 79 Au 197.0 80 Hg 200.6 81 Tl 204.4 82 Pb 207.2 83 Bi 209.0 84 Po (209) 85 At (210) 86 Rn (222) 87 Fr (223) 88 Ra (226) 89 - 103 104 Rf (267) 105 Db (268) 106 Sg (271) 107 Bh (272) 108 Hs (270) 109 Mt (276) 110 Ds (281) 111 Rg (280) 112 Cn (285) 113 Nh (284) 114 Fl (285) 115 Mc (286) 116 Lv (293) 117 Ts (294) 118 Og (294) 57 La 138.9 58 Ce 140.1 59 Pr 140.9 60 Nd 144.2 61 Pm (145) 62 Sm 150.4 63 Eu 152.0 64 Gd 157.3 65 Tb 158.9 66 Dy 162.5 67 Ho 164.9 68 Er 167.3 69 Tm 168.9 70 Yb 173.0 71 Lu 175.0 89 Ac (227) 90 Th 232.0 91 Pa 231.0 92 U 238.0 93 Np (237) 94 Pu (244) 95 Am (243) 96 Cm (247) 97 Bk (247) 98 Cf (251) 99 Es (252) 100 Fm (257) 101 Md (258) 102 No (259) 103 Lr (262)
Image of page 2
Version 015 – young (toy68) – Exam One – shear – (49760) 3 This print-out should have 30 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0points Which of the following has the same electron configuration as Ca 2+ ? 1. Ne 2. Ca 3. S 2 - correct 4. F - 5. Mg 2+ Explanation: We are looking for the atom or ion that is isoelectronic to Ca 2+ . (Isoelectronic means to have the same number of electrons; con- sequently the same electron configuration.) The net +2 charge indicates that Ca 2+ has two more protons than electrons. Since cal- cium always has 20 protons, Ca 2+ must have 18 electrons, so we need an answer choice with 18 electrons.
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern