Electrons and Quantum Mechanics - Oakland Schools

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Utilizing the table below of known IR Spectra for specific molecular structures, identify the peaks in your plot above. ν, cm -1 Intensity Structure * 1050-1400 (s) C⎯O 1315-1475 (m-s) C⎯H 1690-1750 (s) C=O 1700-1725 (s) HO⎯C=O 1770-1820 (s) Cl⎯C=O 2100-2260 (m) C≡C 2500-3000 (s)(vb) O⎯H (in O=C⎯OH) 2800-3000 (m-s) C⎯H 3200-3650 (s) O⎯H *Intensities: (s) = strong, (m) = medium, (w) = weak, (b) = broad, (vb) = very broad. Based on this information determine the identity of your unknown substance based on the following choices: (Circle your answer) H H O H H H H H H H H H H H C H C H C O propionic acid H H C H C O C H C H H sec-butyl alcohol H H C C C O C C C H H H H H H di-n-propyl ether H 74
Name Period Date Patterns in Electron Configuration One of the many patterns contained in the periodic table is that of electron configuration. In this activity, you will identify these patterns. Later, you will use these patterns to determine the order in which electrons fill the orbitals of an atom. As you complete the activity, keep the following in mind: • Period = row, Group = column • Use the table on your book cover, which shows only valence electrons. • There are two number systems for the Groups. We will focus on the A/B system. 1. Which Groups have an s-orbital as the last orbital? 2. Which Groups have a p-orbital as the last orbital? 3. Which Groups have a d-orbital as the last orbital? 4. Which section of the table is left? This section corresponds to the f-orbitals. 5. Look at Group 1A. What is the relationship between the Period number and the energy level of the valence electrons? 6. Look at Group 3A. What is the relationship between the Period number and the energy level of the valence electrons? 7. Look at Group 3B. What is the relationship between the Period number and the energy level of the d-orbitals? 8. Look at the Inner Transition Metals (bottom section). The Lanthanide series (58-71) is part of Period 6. The Actinide series (90-103) is part of Period 7. What is the relationship between the Period number and the energy level of the f-orbitals? 9. Look at all of the A Groups. What is the relationship between the Group number (1A, 2A, etc.) and the total number of valence electrons for each element? (Add up the exponents to find the total number of valence electrons.) 75
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Oakland Schools Chemistry Resource
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Nature of electrons Instructional B
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Emission and Absorption Spectra htt
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Summary • An electron absorbs hea
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State the Aufbau principle. Referen
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Here is a copy of the periodic char
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Shapes of orbitals The shape of the
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“Und” is the undiscovered inert
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The octet rule as seen on the perio
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10. The sum of the oxidation number
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Terms and Concepts Absorbance spect
Page 23 and 24: Materials (For 24 students working
Page 25 and 26: Assessment Ideas 1. Why don’t all
Page 27 and 28: 4. Return the front target, carbon
Page 32 and 33: Electrons & Quantum Mechanics Activ
Page 34 and 35: Name:______________________________
Page 36 and 37: Tips • Clorox 2 is a commercial p
Page 40 and 41: One of the odd things that we somet
Page 42 and 43: Name ___________________ Date _____
Page 44 and 45: Flame tests observations table Ion
Page 46 and 47: Going further Paper logs soaked in
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Page 50 and 51: Questions and observations Examine
Page 52 and 53: Procedure 1. Into the first large t
Page 54 and 55: Analysis and Conclusions 1. Record
Page 58 and 59: Demonstraion 4: Modeling Orbitals.
Page 60 and 61: Demonstration 7: Flame Tests Absorp
Page 62 and 63: Answers to Key Questions 1. The nuc
Page 64 and 65: Counterintuitive Examples 1. Adjust
Page 66 and 67: Equipment pH paper small test tubes
Page 68 and 69: Name ______________________________
Page 70 and 71: Disposal Discussion Solutions may b
Page 72 and 73: References Beren and Brady, Laborat
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Electrons and Quantum Mechanics - Oakland Schools

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