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:If an element with high electron affinity combines…Which of the following statements is correct about…Which of the following substances has the highest…Which of the following Group 1 elements has the…The ionization energy is affected by the following…