Name: _________________________
Bonding Notes
Watch the intro video on bonding and answer the following questions…
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How many valence electrons does Sodium have? What does it have to do to get a full 8 in last shell?
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How many valence electrons does Chlorine have? What does it have to do to get a full 8 in last shell?
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What happens to an atom when it loses its electron?
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What happens to an atom when it gains an electron?
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What happens with the electrons in covalent bonding?
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What is the “goal” of an atom?
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How is this accomplished?
What is an Ion?
What determines what type of bond will form between 2 atoms?
What are the 2 types of ions? Define them.
What is Ionic Bonding?
What is Covalent Bonding-
Covalent Bond Formation-
How do you determine valence electrons?
Two Methods for writing chemical formulas of bonded atoms:
1. Lewis Dot Structure-
(continued)
2. Charge Switch (Ionic only)-
What are the 2 types of numbers used in writing chemical formulas? Define them below.
Bonding Practice
Part I- Using the Lewis Dot Structure Method AND the Charge Switching method, write the chemical formula for the
ionic compound formed between the following atoms.
1) Sodium and Chlorine
2) Potassium and Sulfur
3) Magnesium and Oxygen
4) Beryllium and Chlorine
Part II- Use the Lewis Dot Structure method to find the covalent bond formed between the following atoms.
1) Hydrogen and Hydrogen
2) Chlorine and Chlorine
3) Nitrogen and Hydrogen (forms ammonia)
4) Carbon and Hydrogen (forms methane)