Review Activity

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Bonding Basics

• Review Activity
• 8th Grade Science

T. Trimpe 2008 http//sciencespot.net/
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1. Complete the chart using your knowledge of
atoms.
Vocab Review 1 What do we call the electrons in
the outermost energy level? 2 What term refers
to an atom that has lost or gained electrons? 3
What is a cation? 4 What is an anion?
Valence Electrons
Ions
A positively charged ion
A negatively charged ion
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2. Ionic Bonds - Draw the Lewis structures for
each atom, draw arrows to show the transfer of
electrons, write the charge for each ion, and
then write the chemical formula. (A) Potassium
Iodine (B) Magnesium Oxygen (C)
Lithium Nitrogen
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3. Covalent Bonds Draw the Lewis structures for
each atom, draw circles to show the electrons
that are shared, and then write the bond
structure and chemical formula. (A) Fluorine
Fluorine (B) 3 Hydrogen 1
Phosphorus (C) 2 Hydrogen 1 Sulfur