logging in or signing up Dressen-Periodic Trends darrend23 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 37 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: December 07, 2010 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: hodges7 (17 month(s) ago) dressen this is racheal this is hard! Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript What Are Ions? : What Are Ions? Ion Definition - An atom or group of bonded atoms that have a positive or negative charge Any process that creates an ion is referred to as ionization. Na+ Sodium cation Cl- Chloride anion NH4+ Ammonium cation SO32- Sulfite anion Ionization Energy : Ionization Energy The energy required to remove one electron from a neutral atom = ionization energy A + energy ------> A+ + e- For main group elements …. Ionization energy increases across each period Ionization energy decreases down each group What determines IE? : What determines IE? The greater the nuclear charge, the greater IE (for periods) Greater distance from nucleus decreases IE (for groups You can attempt to take a 2nd and 3rd electron from an atom = 2nd ionization energy and 3rd ionization energy Electron Affinity : Electron Affinity The energy produced when an electron is added to neutral atom = electron affinity A + e- ------> A- + energy Electron Affinity Trend : Electron Affinity Trend Electron Affinity: The energy release when an electron is added to an atom. Most favorable toward NE corner of PT since these atoms have a great affinity for e-. Ionic Radii vs Atomic Radii : Ionic Radii vs Atomic Radii A Closer Look At Ions : A Closer Look At Ions Electronegativity : Electronegativity Measure of how much an atom can attract electrons Higher electronegativity results in higher number Highest value is 4.0 - Fluorine Lowest value is 0.7 - Francium Proposed by Linus Pauling --- Useful in describing properties of compounds Electronegativity Chart : Electronegativity Chart Putting it all Together : Putting it all Together You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Dressen-Periodic Trends darrend23 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 37 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: December 07, 2010 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: hodges7 (17 month(s) ago) dressen this is racheal this is hard! Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript What Are Ions? : What Are Ions? Ion Definition - An atom or group of bonded atoms that have a positive or negative charge Any process that creates an ion is referred to as ionization. Na+ Sodium cation Cl- Chloride anion NH4+ Ammonium cation SO32- Sulfite anion Ionization Energy : Ionization Energy The energy required to remove one electron from a neutral atom = ionization energy A + energy ------> A+ + e- For main group elements …. Ionization energy increases across each period Ionization energy decreases down each group What determines IE? : What determines IE? The greater the nuclear charge, the greater IE (for periods) Greater distance from nucleus decreases IE (for groups You can attempt to take a 2nd and 3rd electron from an atom = 2nd ionization energy and 3rd ionization energy Electron Affinity : Electron Affinity The energy produced when an electron is added to neutral atom = electron affinity A + e- ------> A- + energy Electron Affinity Trend : Electron Affinity Trend Electron Affinity: The energy release when an electron is added to an atom. Most favorable toward NE corner of PT since these atoms have a great affinity for e-. Ionic Radii vs Atomic Radii : Ionic Radii vs Atomic Radii A Closer Look At Ions : A Closer Look At Ions Electronegativity : Electronegativity Measure of how much an atom can attract electrons Higher electronegativity results in higher number Highest value is 4.0 - Fluorine Lowest value is 0.7 - Francium Proposed by Linus Pauling --- Useful in describing properties of compounds Electronegativity Chart : Electronegativity Chart Putting it all Together : Putting it all Together