Which of the following elements would you expect to have the lowest first ionization energy?

Question

Quizplus · Accepted Answer

Iodine (I) is located further down the periodic table in Group 17, which means it has more electron shells compared to the other halogens listed. This results in a greater distance between the nucleus and the outermost electrons, reducing the effective nuclear charge experienced by these electrons and making it easier to remove an electron, thus having the lowest first ionization energy among the options.

Which of the Following Elements Would You Expect to Have