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IONS-MADE-SIMPLE
AN INTRODUCTION
TO THE CREATION OF
CATIONSANDANIONS
Materials needed:
-
Cup of beans beans of your choice-1 cup per student)
-1 Electron place mat preferably one per student;
included here)
-Ion Demonstration answer sheet included here)
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ELECRON PLACE- MAT
NUCLEUS
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Lets Demonstrate How an Ion Forms!!!
Define Ionic bond: __________________________________________________________________________
Key point 1:
Key point 2:
Define Ions: ___________________________________________________________________Examples: ____________________
ACTIVITY:
The Beans in the cups on each table represent electrons. As a group, you will demonstrate how the electronsare transferred from one atom to another atom and become positive or negative ions.
Octet rule states that every atom wants a fu ll valence electron shellconsisting of _________________ valence
electrons in its outer shell (most of the time with the exception of Hydrogen or Helium).
Name
of
Atom
# of
protons
and
electrons
Number
of
valence
electrons
Does this
atom
Gain (G)
or
Lose (L)
its v.e?
New#
of protons
and
electrons
Charge of
ion?
Write + for
proton(s)
Writefor
electrons(-)
Cation
or
Anion
Oxygen 8 p+/8 e- 6 v.e- G-2 v.e- 8 p+/10e- O- Anion
Aluminum
Sodium
Chlorine
Nitrogen
Lithium
Fluorine
Beryllium
Magnesium
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SUMMARY:
Fill in the blanks.
Atoms that gain electrons form __________________________ ions (now have extraelectrons).
Atoms that lose electrons form ___________________________ ions (now have extra protons)
POST ASSESSMENT:
What do the following Ions mean?
Example: O 2-= Oxygen gained 2 electrons
1. Sn 4+=
2. Hg 2+=
3. Li+=
4. F-=
5. P3-=
6. S2-=
7. N3-=
8. Mg2+=
9. B+3
10. Kr=
*Hint: Its a Noble gas.