All Chapters Video 2.1 Atomic Structure and the Bohr Model (Solution) Chapter OutlineChapter Quiz Question? Ask Dr. Mike! Lesson Summary 1. There are four isotopes of calcium. Their mass numbers are 40, 42, 43, and 44. • Please write the complete chemical symbol (superscript and subscript) for each isotope.• How many neutrons are in an atom of each isotope?• How many neutrons, protons, and electrons are present in a 42Ca2+ ion? 2. Give the chemical symbol, with its superscripted mass number, for: • The element with 42 protons and 54 neutrons• The ion with 15 protons, 16 neutrons, and 18 electrons• The isotope of silver that has 61 neutrons 3. How many protons, neutrons and electrons does the 52Cr3+ ion have, respectively? A. 24, 52, 26 B. 52, 52, 55 C. 24, 28, 26 D. 24, 28, 21 E. 24, 28, 25 4. The symbol of an ion is . Which of the following is true regarding the ion? I. It has 92 protons. II. It has 238 neutrons. III. It has 88 electrons. IV. The element X is uranium. A. I and II only B. I, III and IV only C. II and IV only D. I and IV only E. I, II, III, and IV Lesson 2.1 Atomic Structure and the Bohr Model (Solution) 2.1 Atomic Structure and the Bohr Model 2.1 Quiz Video Solution 2.2 Atomic Orbitals 2.3 Quantum Numbers 2.3 Quiz Video Solution 2.4 Electron Configuration 2.5 Condensed Electron Configuration, Valence, and Energy Diagrams 2.6 Electron Configuration Exceptions (Cr and Cu) 2.7 Excited Electron Configurations 2.7 Quiz Video Solution (2.4 - 2.7) 2.8 Paramagnetic vs. Diamagnetic 2.8 Quiz Video Solution 2.9 Emission Spectra, Heisenberg Uncertainty, Photoelectric Effect 2.9 Quiz Video Solution Instructor Dr. Mike Christiansen Dr. Christiansen is a chemistry professor at Utah State University and has a PhD in organic chemistry. He's been teaching students chemistry for nearly 12 years.