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Grade 12 IEB Physical Science (Chemistry) Chemical Bonding (Section B) Summary & notes CA$5.58   Add to cart
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Grade 12 IEB Physical Science (Chemistry) Chemical Bonding (Section B) Summary & notes

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  • Course
  • Physical Sciences
  • Institution
  • 12th Grade

This aesthetic, in-depth, neatly typed document summarises Section B of the IEB Grade 12 Chemistry syllabus: Chemical Bonding. This document includes the full Section B syllabus, all definitions, additional class notes, own research notes and all relevant diagrams.

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Document information

  • January 19, 2023
  • 7
  • 2022/2023
  • Summary

Subjects

  • ieb
  • matric
  • grade 12
  • physical science
  • chemistry
  • paper 2
  • section b
  • chemical bonding
  • aesthetic
  • neatly typed
  • diagrams
  • definitions
  • summary
  • notes

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  • 12th Grade
  • Physical Sciences
  • 200
All documents for this subject (633)

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Chemical Bonding


Intramolecular bond: Bond that occurs between atoms within molecules

What keeps them together:




Type of bonds:

• Metallic bonding: Attraction between positive atomic residues and a sea of delocalised electrons




• Ionic bonding: Transfer of electrons and subsequent electrostatic attraction



Metal and non-metal elements bond (Metal loses electrons & non-metal gains electrons)



Ions are formed and crystal lattice are produced - Giant structures

+ and - ions pack in regular lattice (crystal lattice)

, - Ionic crystals are brittle

- Ionic crystals don't conduct electricity

- Ionic substances can conduct electricity in molten state or when

dissolved: Ions (charges) become mobile



• Covalent bonding: Sharing of at least one pair of electrons by two non-metal atoms (molecules

formed)



Molecules are small groups of atoms, but sometimes (diamond, C ; graphite, C and quartz sand

SiO2) Giant molecules are formed = network covalent structures




Lewis structure: Symbol of element with dots representing valence electrons



4 types of covalent bonds:

1. Single covalent bond:




2. Double covalent bond:

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