Which of the following elements has the highest ionization energy? By: Sunday|Published on: Mar 16|Categories: Chemistry WAEC| 0 comments A. Calcium B. Chlorine C. Flourine D. Magnesium Correct Answer: Option D – Magnesium Users Also Read These:In which of the following series are the atoms…If an element with high electron affinity combines…Which of these arrangement of elements is in order…Which of the following arrangements indicates the…Which of the following Group 1 elements has the…SEE ALSO Which of the following statements about an electrochemical cell is correct? Oxidation occurs