Q. The atom of an element has electronic con-figuration 2, 8, 7. To which of the following elements would it be chemically similar?
A. N(7)
B. P(15)
C. Na(11)
D. F (9)
Answer: F (9)
A. N(7)
B. P(15)
C. Na(11)
D. F (9)
Answer: F (9)
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