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Atomic Structure and Bonding

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Presentation on theme: "Atomic Structure and Bonding"— Presentation transcript:

1 Atomic Structure and Bonding

2 Specific Learning Outcomes
Enter here.

3 Covalent and ionic bonding
COVALENT BOND Definition: A covalent bond is a chemical link between two atoms in which electrons are shared between them. Examples: There is a covalent bond between the oxygen and each hydrogen in a water molecule (H2O). Each of the covalent bonds contains two electrons - one from a hydrogen atom and one from the oxygen atom. Both atoms share the electrons.

4 Covalent and ionic bonding
Definition: A chemical link between two atoms caused by the electrostatic force between oppositely-charged ions in an ionic compound. Examples: There is an ionic bond between the sodium and chloride ions in table salt, NaCl.

5 Covalent and ionic bonding

6 Lewis Diagrams Electron dot diagrams, sometimes called Lewis dot diagrams, were first used by Gilbert N. Lewis in 1916. These diagrams are used as a shorthand notation to show the number of valence electrons in an atom. More complicated versions can be used to show the bond between different atoms in a molecule.

7 Lewis Diagrams

8 I think chemistry is beryllium!
Draw the dots (page 16) Level 2 Chemistry Theory Workbook Activities I think chemistry is beryllium!

9 covalent bonding in elements
Single bonding Double bonding Triple bonding

10 I think your website is beryllium!
Activities I think your website is beryllium! Dotty again – page 17 Dot to Dot – page 17 (First 8 questions) Dotty Eyed by Now – page 19 Level 2 Chemistry Theory Workbook

11 Coordinate covalent bonding (Dative Bonding)
In the formation of a simple covalent bond, each atom supplies one electron to the bond - but that doesn't have to be the case. A co-ordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom. Examples include: Sulfur dioxide & Sulfur trioxide

12 I think your website is beryllium!
Activities I think your website is beryllium! Dative Bonding – page 20 Level 2 Chemistry Theory Workbook


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