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QUESTION
Q102) Which of the following sets of atomic numbers belong to that of alkali metal? [ AFMC 2001]
a) 1, 12, 30, 4, 62
b) 37, 19, 3, 55
c) 9, 17, 35, 53
d) 12, 20, 56, 88
SOLUTION
Answer: (b)