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iheartfood

  • 2 years ago

#1: For the A groups (Groups 1A to 8A), how does the group number relate to the electron arrangement in atoms of the group? A. The group number is equal to the number of electrons in the element. B. The group number is equal to the block number of the sublevel. C. The group number is equal to the charge on the ions. D. The group number is equal to the number of valence electrons. ***my answer: D. equal to # of valence electrons is that right?

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  1. Alana75
    • 2 years ago
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    D

  2. iheartfood
    • 2 years ago
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    kk and #2: Which of the following is the electron configuration of an electrically neutral halogen? (attaching answer choices in a sec!)

  3. iheartfood
    • 2 years ago
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    answer choices A,B,C,D from top to bottom.

  4. iheartfood
    • 2 years ago
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    |dw:1352703003748:dw|

  5. Alana75
    • 2 years ago
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    1s2 2s2 2p5 is Fluorine, so I believe that is correct. The others are way off.

  6. iheartfood
    • 2 years ago
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    |dw:1352703196131:dw|

  7. iheartfood
    • 2 years ago
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    oaky and do u get #3? :)

  8. Alana75
    • 2 years ago
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    C) Potassium

  9. iheartfood
    • 2 years ago
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    okay yeah it think so too.. i found this webiste http://chemwiki.ucdavis.edu/@api/deki/pages/5637/pdf so my answer is C. potassium for sure?

  10. Alana75
    • 2 years ago
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    Yep. Potassium. That one is simple if you think about it, Potassium is the only element that will end with 4s1.

  11. iheartfood
    • 2 years ago
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    kk thanks :)

  12. Alana75
    • 2 years ago
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    No problem. Good luck!

  13. iheartfood
    • 2 years ago
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    thanks!

  14. iheartfood
    • 2 years ago
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    thanks!

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