CHAPTER 05

CHAPTER 05 - Important Read Before Using Slides in Class...

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Important – Read Before Using Slides in Class Instructor: This PowerPoint presentation contains photos and figures from the text, as well as selected animations and videos. For animations and videos to run properly, we recommend that you run this PowerPoint presentation from the PowerLecture disc inserted in your computer. To run the animations on these slides please click on the icon on each still. If you prefer to customize the presentation or run it without the PowerLecture disc inserted, the animations and videos will only run properly if you also copy the associated animation and video files for each chapter onto your computer. Follow these steps: 1. Go to the disc drive directory containing the PowerLecture disc, and then to the “Media” folder, and then to the “PowerPoint_Lectures” folder. 2. In the “PowerPoint_Lectures” folder, copy the entire chapter folder to your computer. Chapter folders are named “chapter1”, “chapter2”, etc. Each chapter folder contains the PowerPoint Lecture file as well as the animation and video files. For assistance with copying the slide and video files, please visit our Technical Support at www.cengage.com/support or call (800) 423-0563. Thank you.
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5 Chemical Periodicity
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3 Chapter Goals 1. More About the Periodic Table Periodic Properties of the Elements 1. Atomic Radii 2. Ionization Energy 3. Electron Affinity 4. Ionic Radii 5. Electronegativity
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4 Chapter Goals Chemical Reactions and Periodicity Hydrogen Reactions of Hydrogen and the Hydrides Oxygen and Ozone Reactions of Oxygen and the Oxides Combustion Reactions Combustion of Fossil Fuels and Air Pollution
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5 More About the Periodic Table Establish a classification scheme of the elements based on their electron configurations. Noble Gases All of them have completely filled electron shells. Since they have similar electronic structures, their chemical reactions are similar. He 1s 2 Ne [He] 2s 2 2p 6 Ar [Ne] 3s 2 3p 6 Kr [Ar] 4s 2 3d 10 4p 6 Xe [Kr] 5s 2 4d 10 5p 6 Rn [Xe] 6s 2 4f 14 5d 10 6p 6
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6 More About the Periodic Table Representative Elements Are the elements in A groups on periodic chart. These elements will have their “last” electron in an outer s or p orbital. These elements have fairly regular variations in their properties.
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7 More About the Periodic Table d -Transition Elements Elements on periodic chart in B groups. Sometimes called transition metals. Each metal has d electrons. n s (n-1) d configurations These elements make the transition from metals to nonmetals. Exhibit smaller variations from row-to-row than the representative elements.
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8 More About the Periodic Table f - transition metals Sometimes called inner transition metals. Electrons are being added to
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CHAPTER 05 - Important Read Before Using Slides in Class...

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