CHEMICAL BONDING

1
CHEMICAL BONDING

• The most important property of an is how it
  combines

2
Outcomes/Objectives Things you will be able to do

• Define chemical bond and relate to valence
  electrons
• Predict an elements chemical properties using the
  number of valence electrons.
• Draw Bohr models and electron dot diagrams for
  elements.
• List three types of bonding
• Describe how an Ionic Bond forms and the force
  that keeps them together.
• Define Ion
• QUIZ
• Describe how a covalent bond forms.
• Define Molecule
• Recognize and describe polyatomic ions.
• Test Preparation
• Study Daily, Complete All Assignments ,Stay 10th
  , Stay on Task (Focus),
  PLEASE ask for HELP when LOST

3
Chemical Bond

• Attractive force that holds or
  together
• Atoms of different Elements can combine with each
  other in many different ways
• Example

4
ELECTRONS AND BONDING

• e- are arranged into
• Energy Levels can hold more e- as you move
  farther away from the nucleus via (2level2)

• For bonding reasons in general atoms will form
  compounds if the bonding results in both Atoms
• The of valence e- determines an elements

5

• Electron Dot Diagrams of Elements only show the
  symbol surrounded by dots that represent the of
  valence electrons. Create e- dot diagrams for
  elements 3 to 10.

• Make Bohr Models of Elements 3 Through 10

6
CHEMICAL BONDING AND STABILITY

• Atoms want to have stable electron
  configurations. And in order to be stable they
  need in their outer energy level. This can
  be achieved by bonding with other atoms.
• transfer of electrons from atom to atom
• sharing of electrons
• the attraction between a metal cation and
  the shared electrons that surround it

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Ionic Bonds Transfer of e-

• Atoms can
  in their outer level (shell)
• Form between
• Stay together because of an
  between oppositely charged

8
IONS

• METALS
• tend to
• form
• than the atoms that make them up
  b/c the nucleus

• NONMETALS
• tend to
• form
• than the atoms that make them up b/c
  the nucleus

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COVALENT BONDING

• Sharing
• Form between.
• Form
• Can be
• More

10
COVALENTLY BONDED IONS

• _________________
• a group of covalently bonded atoms that has an
  electric charge due to
• Example

• Metallic Bonds