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NAME _______________________________________ PERIOD _______________ DATE ___________
CHAPTER 5
CHARACTERISTICS OF ELEMENTS
Use a periodic table of the elements to help you answer the following questions.
1. a)
How many protons does an atom of bromine have?
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b)
In which Group is bromine found?
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c)
What is the name of its chemical family?
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d)
How many valence electrons does it have?
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e)
Is it a metal, nonmetal, metalloid, or a gas?
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f)
How does its atomic radius compare to chlorine’s?
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g)
How does it atomic radius compare to arsenic’s?
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h)
What ion is it most likely to form in compounds?
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How many protons does an atom of argon have?
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b)
In which Group is argon found?
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c)
What is the name of its chemical family?
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d)
How many valence electrons does it have?
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e)
Is it a metal, nonmetal, metalloid, or a gas?
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f)
How does its atomic radius compare to krypton’s?
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g)
How does its atomic radius compare with that of sulfur?
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h)
What ion is it most likely to form in compounds?
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How many protons does an atom of potassium have?
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b)
In which Group is potassium found?
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c)
What is the name of its chemical family?
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d)
How many valence electrons does it have?
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e)
Is it a metal, nonmetal, metalloid, or a gas?
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f)
How does its atomic radius compare to sodium’s?
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g)
How does its atomic radius compare with that of selenium?
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h)
What ion is it most likely to form in compounds?
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2. a)
3. a)