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iheartfood

  • 3 years ago

#1: How many valence electrons are in the outermost shell of all halogens? A. 1 B. 4 C. 7 D. 8 **my answer; C. 7 is that right?

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  1. iheartfood
    • 3 years ago
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    #2: Which of the following statements explains why the noble gases are so unreactive? A. They have one valence electron. B. They have two valence electrons. C. They have seven valence electrons. D. They have eight valence electrons. ***my answer: D. they have 8 valence electrons. is that right?

  2. jim_thompson5910
    • 3 years ago
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    1C looks good

  3. jim_thompson5910
    • 3 years ago
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    http://dl.clackamas.cc.or.us/ch104-06/valence_electrons.htm

  4. iheartfood
    • 3 years ago
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    kk :) what about 2?

  5. jim_thompson5910
    • 3 years ago
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    and 2D looks good (using same page)

  6. iheartfood
    • 3 years ago
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    and #3: Calcium must lose two electrons to get a full outer shell. What is the name of the group to which calcium belongs? A. noble gas B. alkali metal C, alkaline earth metal D. halogen **my answer: C. alkaline earth metal is that right?

  7. jim_thompson5910
    • 3 years ago
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    looks good

  8. iheartfood
    • 3 years ago
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    k thanks :)

  9. iheartfood
    • 3 years ago
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    k thanks :)

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