PDF chapter test TRY NOW
1. An atom has electronic configuration 2, 8, 7.
(b) To which of the following elements would it be chemically similar? (Atomic numbers are given in parentheses).
N (7), F (9), P (15), Ar (18)
(b) To which of the following elements would it be chemically similar? (Atomic numbers are given in parentheses).
N (7), F (9), P (15), Ar (18)
2. Which of the following is the outermost shell for elements of 2nd period?
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