Question

The first ionization enthalpies 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 ionization enthalpy of nitrogen ?

• A. $13.6$
• B. $14.5$
• C. $11.3$
• D. $8.3$

Answer 1

Answer: (B)

$14.5$

Nitrogen has highest ionization potential so $14.5$ eV will be the first ionization enthalpy of Nitrogen.