Grade 12 IEB Physical Science (Chemistry) Chemical Bonding (Section B) Summary & notes
33 views 0 purchase
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.
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:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Lindyprinsloo. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $4.21. You're not tied to anything after your purchase.
