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Summary Dot-&-Cross (Lewis Dot Structure) Diagrams $2.99   Add to cart

Summary

Summary Dot-&-Cross (Lewis Dot Structure) Diagrams

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  • Course
  • Chemistry
  • Institution
  • Junior / 11th Grade

The file discusses dot-and-cross diagrams, specifically focusing on how atoms follow the expanded octet rule and the incomplete octet rule in covalent compounds. It also touches on the concept of ionic compounds and how atoms transfer their outer/valence electrons. The diagrams illustrate how atoms...

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  • October 3, 2024
  • 12
  • 2024/2025
  • Summary
  • Junior / 11th grade
  • Chemistry
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CIE AS Chemistry Your notes

3.7 Dot-&-Cross Diagrams
Contents
Dot-&-Cross Diagrams




Page 1 of 12

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Dot-&-Cross Diagrams
Your notes
Dot & Cross Diagrams
Dot and cross diagrams are diagrams that show the arrangement of the outer-shell electrons in an
ionic or covalent compound or element
The electrons are shown as dots and crosses
In a dot and cross diagram:
Only the outer electrons are shown
The charge of the ion is spread evenly which is shown by using brackets
The charge on each ion is written at the top right-hand corner

Ionic compounds
Ionic bonds are formed when metal transfer electrons to a non-metal to form a positively charged and
negatively charged ion
The atoms achieve a noble gas configuration


Dot-and-cross diagrams of ionic compounds




Page 2 of 12

© 2015-2024 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers

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