Which of the following element belongs to the second transition series of the periodic table?(a) Ni(b) Au(c) La(d) NbThis question was addressed to me in an interview.I would like to ask this question from Position of the Periodic Table topic in section D and F-Block Elements of Chemistry – Class 12

Which of the following element belongs to the second transition series

1.	Which of the following element belongs to the second transition series of the periodic table?(a) Ni(b) Au(c) La(d) NbThis question was addressed to me in an interview.I would like to ask this question from Position of the Periodic Table topic in section D and F-Block Elements of Chemistry – Class 12
Answer» RIGHT option is (d) Nb Best explanation: The second transition series or 4d series corresponding to the filling of 4d sublevel consists of the FOLLOWING 10 elements of the 5^th PERIOD: Y (Atomic No. = 39), Zr, Nb, Mo, Tc, Ru, RH, Pd, Ag and Cd (Atomic No. = 48).

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