Which of the following Group 1 elements has the highest ionization energy? by Sunday | Aug 22 | Chemistry WAEC | 0 comments A. 55Cs B. 37Rb C. 19K D. 11Na E. 3Li Correct Answer: Option E – 3Li Users Also Read These:Which of the following arrangements is in order of…Which of the noble gases has the greatest ionization energy?How are ionization energies related to the…Which of the following substances has the highest…Which of the following substances has the highest…