Physical science unit 1
Download
1 / 7

Physical Science Unit 1 - PowerPoint PPT Presentation


  • 81 Views
  • Uploaded on

Physical Science Unit 1. Chapter 5 Lesson 3 Covalent Bonds. Start Up. Objectives: Explain covalent bonds Write electron-dot diagrams for simple molecules. Answer the following question: How are molecules formed?. Covalent Bonds. A bond where valence electrons are shared between atoms

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Physical Science Unit 1' - temira


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Physical science unit 1

Physical ScienceUnit 1

Chapter 5

Lesson 3

Covalent Bonds


Start up
Start Up

  • Objectives:

    • Explain covalent bonds

    • Write electron-dot diagrams for simple molecules

  • Answer the following question:

  • How are molecules formed?


Covalent bonds
Covalent Bonds

  • A bond where valence electrons are shared between atoms

    • Enables atoms to form molecules


Diatomic molecule
Diatomic Molecule

  • A molecule made up of two atoms of the same element

    • Electrons are shared equally

    • Only elements can have diatomic molecules:

      • Nitrogen

      • Oxygen

      • Hydrogen

      • Chlorine

      • Bromine

      • Iodine

      • Flouride


Hard to see
Hard to See!

  • Covalent bonds are hard to visualize, so scientists came up with a diagramming method to show these bonds

    • Called electron-dot diagram

      • A model in which the chemical symbol represents the nucleus and all the filled inner energy levels of the atom and one dot represents each valence electron


Let s do it
Let’s Do it!

  • Let’s do some electron dot diagrams together


Homework
Homework

  • Complete electron-dot ws in packet

  • Answer review questions


ad