Introduction to Bondingtokaysc6.weebly.com/uploads/3/0/8/6/30860563/intro_to_bonding.pdf · more...
Transcript of Introduction to Bondingtokaysc6.weebly.com/uploads/3/0/8/6/30860563/intro_to_bonding.pdf · more...
Introduction to Bonding
C. Johannesson
A. Vocabulary
•Chemical Bond
• attractive force between atoms or ions that binds them together as a unit
• bonds form in order to… • decrease potential energy (PE)
• increase stability
A. Vocabulary CHEMICAL FORMULA
Molecular Formula
Formula Unit
IONIC COVALENT
CO2 NaCl
A. Vocabulary COMPOUND
Ternary Compound
Binary Compound
2 elements more than 2
elements
NaNO3 NaCl
A. Vocabulary ION
Polyatomic Ion
Monatomic Ion
1 atom 2 or more atoms
NO3- Na+
C. Johannesson
IONIC COVALENT
Bond Formation
Type of Structure
Solubility in Water
Electrical Conductivity
Other Properties
e- are transferred from metal to nonmetal
high
yes (solution or liquid)
yes
e- are shared between two nonmetals
low
no
usually not
Melting Point
crystal lattice true molecules
B. Typ
es of B
on
ds
Physical State solid liquid or gas
odorous
C. Johannesson
“electron sea”
METALLIC
Bond Formation
Type of Structure
Solubility in Water
Electrical Conductivity
Other Properties
Melting Point
Physical State
e- are delocalized among metal atoms
very high
yes (any form)
no
malleable, ductile, lustrous
solid
C. Johannesson
B. Types of Bonds
C. Johannesson
Ionic Bonding - Crystal Lattice
RETURN
B. Types of Bonds
C. Johannesson
Covalent Bonding - True Molecules
RETURN
B. Types of Bonds
Diatomic
Molecule
C. Johannesson
Metallic Bonding - “Electron Sea”
RETURN
B. Types of Bonds