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:How are ionization energies related to the…What is the probability of producing a child of…Which of these arrangement of elements is in order…What is the probability? of a man of blood group AB…Which of the following arrangements indicates the…