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Question
Use the periodic table to answer the following question.
Identify an element with five electrons in the outer subshell.
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Solution
The electronic configuration of an element having 5 electrons in its outermost subshell should be ns2np3. This is the electronic configuration of the halogen group. Thus, elements in this group include nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).
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