Which of the following elements has the highest ionization energy? by Sunday | Mar 16 | Chemistry WAEC | 0 comments A. Calcium B. Chlorine C. Flourine D. Magnesium Correct Answer: Option D – Magnesium Users Also Read These:Explain the meaning of Ionization energy. - NABTEB QUESTIONHow are ionization energies related to the…Which of the following arrangements is in order of…Which of the noble gases has the greatest ionization energy?Which of the following substances has the highest…