Amie Bickert
January 25, 2011 Bickert
January 25, 2011 Arnfeldt
Chemistry-Ionic and Covalent Bonds
1. Standards
 3.4.10. A Explain concepts about the structure and properties of matter.
 3.4. 10. D Explain essential ideas about the composition and structure of the
universe.
2. Objectives
 SWBAT describe and show how ionic and covalent bonds form with 80%
accuracy as measured by three questions as tickets out the door.
 SWBAT explain why some elements combine using ionic bonds and some
covalent bonds with 80% accuracy as measured by teacher observation and
questions.
3. Materials and Equipment
 Vocabulary
 Poster Board
 Markers, crayons, etc.
 Periodic Table
4. Procedures
A. Introduction:
B. Anticipatory Set/ C. Motivation:
D. Sequence of Lesson
 Direct Instruction:
o To form a compound the valence electrons of elements are lost,
gained, or shared between the different atoms to create
substances with unique chemical properties.
o Electrons on the outer energy shell are the ones that move...the
moving of the electrons cause atoms to become negatively
charged or positively charged.
o To basic ways to form bonds:
 Ionic bonds- when an atom looses one or more valence
electrons it becomes positively charged ion and when
an atom gains electron(s) it becomes a negatively
charged ion. The ions attract each other and bond
together. Opposites attract
 Octet rule- Happy Atom Rule- Atoms tend to gain or
lose electrons in order to gain a full set of valence
electrons. Atoms are only happy when they have eight
valence electrons
 Covalent bonds-sharing of valence electrons between
atoms that forms a bond



Examples: plastic, paper, plant life, water, most
of the air we breathe, and every tissue in the
human body.
Guided Practice:
o Sodium Chloride –salt- ionic bond
o T. will show the students the Lewis dot diagram of sodium and
chlorine and how one looses and the other gains the electrons
to become happy atoms.
o Ionic Bonds: Magnesium Oxide, Silver Chloride, Litium and
Bromine, Caesium Fluoride
o Covalent Bonds: H2, F2, I2
Independent practice:
o Students will create posters to explain covalent and ionic
bonds. They will then show one of the above examples in a
picture on the poster of how the electrons transfer or are
shared.
E. Closure:
 Ticket out the door: Why do some atoms lose electrons to bond with
other elements?
F. Assessment/Evaluation:
 Ss will hand in their examples of covalent and ionic bonding posters
for grades
5. Assignments: none
6. Special Considerations