logging in or signing up Covalent_Bonding_AC lmarks 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: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 205 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: October 14, 2009 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Learning Targets : I can explain why covalent bonds form. I can explain the relationships among potential energy, distance between approaching atoms, bond length and bond energy. I can state the octet rule. I can determine the number of valence electrons for a given atom. Learning Targets Formation of a Covalent Bond : Nature favors chemical bonding because most atoms have lower potential energy when they are bonded to other atoms. Formation of a Covalent Bond Formation of a Covalent Bond : Each atom has a positive nucleus in the center and negative electrons surrounding the nucleus in a spherical pattern. The positively charged nuclei are attracted to the negatively charged electrons. Formation of a Covalent Bond Formation of a Covalent Bond : As the atoms approach each other, the charged particles interact: nucleus on one atom attracts electrons on the other atom. Formation of a Covalent Bond Formation of a Covalent Bond : As the atoms approach one another, the potential energy decreases. A bond forms when the potential energy is at a minimum. Formation of a Covalent Bond Formation of a Covalent Bond : If the atoms continue to approach one another once the bond forms, the nuclei will begin to repel one another and the potential energy will start to increase. Formation of a Covalent Bond Characteristics of a Covalent Bond : Bond length is the distance between two covalently bonded atoms at the minimum potential energy. Bond energy is the amount of energy required to break a covalent bond. The more energy required to break a bond, the stronger the bond. Characteristics of a Covalent Bond The Octet Rule : The octet rule states that atoms tend to lose, gain or share electrons until they are surrounded by 8 electrons in their valence shell. The number of valence electrons is equal to the group number. The Octet Rule 1A 2A 3A 4A 5A 6A 7A 8A Practice Problems : What is the relationship between bond length and bond energy? Practice Problems Refer to the table below to answer the following questions. Practice Problems : What is the relationship between bond length and bond energy? The bond length decreases as the strength of the bond increases. Practice Problems Refer to the table below to answer the following questions. Practice Problems : Arrange the following in order of increasing bond strength: C–Cl, C–I, H–F, and I–I Practice Problems Refer to the table below to answer the following questions. Practice Problems : Arrange the following in order of increasing bond strength: C–Cl, C–I, H–F, and I–I I – I, C – I, C – Cl, and H – F Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the strongest bond? Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the strongest bond? H – F Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the weakest bond? Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the weakest bond? I – I Practice Problems Refer to the table below to answer the following questions. Practice Problems : Arrange the following bond lengths in order of increasing bond strength: 72 pm, 149 pm, 53 pm, and 398 pm Practice Problems Practice Problems : Arrange the following bond lengths in order of increasing bond strength: 72 pm, 149 pm, 53 pm, and 398 pm 398 pm, 149 pm, 72 pm, and 53 pm Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon = 4 Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon = 4 Neon Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon = 4 Neon = 8 Practice Problems You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Covalent_Bonding_AC lmarks 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: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 205 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: October 14, 2009 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Learning Targets : I can explain why covalent bonds form. I can explain the relationships among potential energy, distance between approaching atoms, bond length and bond energy. I can state the octet rule. I can determine the number of valence electrons for a given atom. Learning Targets Formation of a Covalent Bond : Nature favors chemical bonding because most atoms have lower potential energy when they are bonded to other atoms. Formation of a Covalent Bond Formation of a Covalent Bond : Each atom has a positive nucleus in the center and negative electrons surrounding the nucleus in a spherical pattern. The positively charged nuclei are attracted to the negatively charged electrons. Formation of a Covalent Bond Formation of a Covalent Bond : As the atoms approach each other, the charged particles interact: nucleus on one atom attracts electrons on the other atom. Formation of a Covalent Bond Formation of a Covalent Bond : As the atoms approach one another, the potential energy decreases. A bond forms when the potential energy is at a minimum. Formation of a Covalent Bond Formation of a Covalent Bond : If the atoms continue to approach one another once the bond forms, the nuclei will begin to repel one another and the potential energy will start to increase. Formation of a Covalent Bond Characteristics of a Covalent Bond : Bond length is the distance between two covalently bonded atoms at the minimum potential energy. Bond energy is the amount of energy required to break a covalent bond. The more energy required to break a bond, the stronger the bond. Characteristics of a Covalent Bond The Octet Rule : The octet rule states that atoms tend to lose, gain or share electrons until they are surrounded by 8 electrons in their valence shell. The number of valence electrons is equal to the group number. The Octet Rule 1A 2A 3A 4A 5A 6A 7A 8A Practice Problems : What is the relationship between bond length and bond energy? Practice Problems Refer to the table below to answer the following questions. Practice Problems : What is the relationship between bond length and bond energy? The bond length decreases as the strength of the bond increases. Practice Problems Refer to the table below to answer the following questions. Practice Problems : Arrange the following in order of increasing bond strength: C–Cl, C–I, H–F, and I–I Practice Problems Refer to the table below to answer the following questions. Practice Problems : Arrange the following in order of increasing bond strength: C–Cl, C–I, H–F, and I–I I – I, C – I, C – Cl, and H – F Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the strongest bond? Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the strongest bond? H – F Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the weakest bond? Practice Problems Refer to the table below to answer the following questions. Practice Problems : Which pair of bonded atoms has the weakest bond? I – I Practice Problems Refer to the table below to answer the following questions. Practice Problems : Arrange the following bond lengths in order of increasing bond strength: 72 pm, 149 pm, 53 pm, and 398 pm Practice Problems Practice Problems : Arrange the following bond lengths in order of increasing bond strength: 72 pm, 149 pm, 53 pm, and 398 pm 398 pm, 149 pm, 72 pm, and 53 pm Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon = 4 Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon = 4 Neon Practice Problems Practice Problems : Determine the number of valence electrons in each of the following atoms. Lithium = 1 Sulfur = 6 Carbon = 4 Neon = 8 Practice Problems