Notes
CHAPTER 8 NOTES SABIS CHEMISTRY Molecules in the gas phase
Content of the notes (2)
Page 1
Electron Dot Representation (lewis diagrams)
Electron dot representation of atoms: consists of the chemical symbol for the element
surrounded by dots representing its valence electrons. The chemical symbol represents the atom's
nucleus and the non-valence (core electrons).
Electron dot representation of cations
Electron dot representation of anions: The gained electrons are paired with the original
valence electrons and represented in a different symbol.
Electron dot cross diagram of ionic compounds
a) Decide on the atoms required, the number of each and the electronic structure.
b) Assume complete transfer of electrons between atoms to form ions with noble gas electronic
structure.
c) Show only the outer energy level electronic structure. Draw square brackets around each ion and
show its charge
Electron dot cross diagrams of covalent compounds
Electron dot cross diagrams of elements
Hybridization
sp hybridization
sp2 hybridization
sp3– hybridization
Beryllium and boron are said to be electron deficient in their compounds
Summary of bonding orbitals, molecular shapes and bond angles:
A
A
A
A
A
A
A
A
A
A
A
Page 2
Information
- Description
- Grade 11 SABIS GRADE 11 Note on CHAPTER 8 NOTES SABIS CHEMISTRY Molecules in the gas phase, created by Hisham Mahmoud on 14/02/2022.
- Created by
- Hisham Mahmoud
- Views
- 67
- Tags
- Rating