The first conization potential of four consecutive elements, present in the second period of the periodic table are $8.3,11.3,14.5$ and $13.6\;ev$ respectively. Which one of the following is the first conization potential (in ev) of nitrogen ?

Question

$\begin{array}{1 1} 13.6 \\ 11.3 \\ 8.3 \\ 14.5 \end{array} $