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#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?

Chemistry
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D
kk and #2: Which of the following is the electron configuration of an electrically neutral halogen? (attaching answer choices in a sec!)
answer choices A,B,C,D from top to bottom.

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Other answers:

|dw:1352703003748:dw|
1s2 2s2 2p5 is Fluorine, so I believe that is correct. The others are way off.
|dw:1352703196131:dw|
oaky and do u get #3? :)
C) Potassium
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?
Yep. Potassium. That one is simple if you think about it, Potassium is the only element that will end with 4s1.
kk thanks :)
No problem. Good luck!
thanks!
thanks!

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