Question

Which of the following element belongs to the first transition series of the periodic table?

• A. V
• B. Zr
• C. Ta
• D. Y

Answer 1

The correct option is A V

The first transition series or 3d series corresponding to the filling of 3d sublevel consists of the following 10 elements of the $4^{th}$ period: Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn. Hence Vanandium (V) belongs to first transition series.