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:Which of the noble gases has the greatest ionization energy?Which of the following arrangements indicates the…The ionization energy is affected by the following…Which of the following statements is correct about…Moving from left to right across a period; the…