Of the following,which element has the highest first ionization energy?
A)In
B)I
C)Rb
D)Sb

Question

Quizplus · Accepted Answer

Iodine (I) has the highest first ionization energy among the options given. Ionization energy generally increases across a period from left to right in the periodic table because the nuclear charge increases, making it more difficult to remove an electron. Among the options, iodine is the farthest to the right in its period, indicating it has the highest first ionization energy.

Of the Following,which Element Has the Highest First Ionization Energy