Ionic Bonds 7.1.9
Presentation
•
Science
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7th Grade
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Practice Problem
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Medium
Standards-aligned
Laura O'Neill
Used 5+ times
FREE Resource
12 Slides • 9 Questions
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Ionic Bonds - Lesson 7.1.9
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Metals = Pink
Nonmetals = Blue
Metalloids = Green
Remember from previous lessons....
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Notebook
page 144
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Multiple Choice
True or False: Covalent bonds occur when atoms share electrons.
True
False
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Multiple Choice
An atom of arsenic has 5 valence electrons. What will it tend to do so it can be stable?
Lose or give 5 electrons away
Gain or share 5 electrons
Lose or give 3 electrons
Gain or share 3 electrons
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Multiple Choice
What charge does an electron have?
positive
negative
no charge
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Ionic bonds form when an atom gains or loses valence electrons.
If it gains an electron, then the atom will become negatively charged.
If it loses and electron, then it will become positively charged.
Ionic Bonds
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Examples:
-sodium & oxygen
-Magnesium & chlorine
Ionic bonds form between opposite sides of the table.
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Hotspot
Which element is MOST LIKELY to form an ionic bond with IODINE?
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We use a superscript to show the charge of an ion.
For example:
if fluorine gained one electron
F-
if Lithium lost 2 electrons
Li2+
If lose e = positive
If gain e = negative
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When an atom gains or loses electrons, it becomes an ion or an atom with a positive or negative charge
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FYI
Metal atoms tend to give away electrons
& nonmetal atoms receive atoms!
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Another name for an ionic compound is SALT.
There are hundreds of different types of salt.
Any compound that consists of atoms joined by an ionic bond is a salt!
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They tend to have the following properties:
- brittle
- high melting point
- crystal structure
Ionic Compounds
Properties
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Draw
Let's Draw!
Draw a Lewis Structure of
Sodium Chloride.
Be sure to add the charges!
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Draw
Let's Draw!
Draw a Lewis Structure of
Potassium nitride (K3N).
Be sure to add the charges!
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Categorize
Electrons are shared
Electrons transfer
Occurs between a metal and nonmetal
Occurs between nonmetals
Uses valence electrons
Place the following characteristics under the correct type of bonding.
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Match
Match the following bonds to their example.
Covalent Bond
Ionic Bond
Polar Bond
Nonpolar Bond
Covalent Bond
Ionic Bond
Polar Bond
Nonpolar Bond
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Poll
What do you feel you need more practice with before the quiz?
Finding P, N & E
Lewis Structure diagrams
Valence Electrons & Periodic Table
Types Bonds
Formulas
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Tomorrow we will
Play Review Games!
Ionic Bonds - Lesson 7.1.9
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