Lewis Dot Diagrams. Since atoms are only concerned with having a full outer/valence shell. It is...
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Lewis Dot Diagrams
![Page 2: Lewis Dot Diagrams. Since atoms are only concerned with having a full outer/valence shell. It is sometimes more convenient to look at the valence shell.](https://reader036.fdocuments.in/reader036/viewer/2022082501/5a4d1b897f8b9ab0599bdf62/html5/thumbnails/2.jpg)
Lewis Dot Diagrams
• Since atoms are only concerned with having a full outer/valence shell.
• It is sometimes more convenient to look at the valence shell.
• Electrons in the valence shell are called valence electrons.
![Page 3: Lewis Dot Diagrams. Since atoms are only concerned with having a full outer/valence shell. It is sometimes more convenient to look at the valence shell.](https://reader036.fdocuments.in/reader036/viewer/2022082501/5a4d1b897f8b9ab0599bdf62/html5/thumbnails/3.jpg)
Lewis Dot Diagram
• A Lewis Dot Diagram is a diagram of the atom where only the valence electrons are drawn.
• Valence electrons are represented by dots.
• The nucleus of the atom is represented by the atom’s symbol only.
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Lewis Dot Diagrams
• Since a full valence shell normally consists of 8 electrons, Lewis dot diagrams are drawn with two dots on the top, bottom, left and right.
• We only draw electrons for the outer shell.
![Page 5: Lewis Dot Diagrams. Since atoms are only concerned with having a full outer/valence shell. It is sometimes more convenient to look at the valence shell.](https://reader036.fdocuments.in/reader036/viewer/2022082501/5a4d1b897f8b9ab0599bdf62/html5/thumbnails/5.jpg)
• Sulfur has 16 electrons.• K = 2• L= 8• M = 6 (Valence shell)
• Draw the Lewis Dot Diagram
S
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The Periodic Table
• We’ll be talking about this next class.
• Here are some basics to help familiarize yourself with the table and help you to complete your assignment.
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Metals are found on the left hand side
The “staircase” shows metalliods
Non-metals are on the right hand side
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Each column is called a group/family
Each row is called a period
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Periodic Table Basics
• Page 7• Questions on page 8 and the “periodic
table” you make will be handed in for marks.
• You have the rest of the class to work on it…… Let me know if you need help.