3 multiple choice 1 point which element shown below requires more energy to remove an electron? radon krypton
3 multiple choice 1 point which element shown below requires more energy to remove an electron? radon krypton
Answer
Answer:
A. Radon
Explanation:
Step1: Recall ionization - energy trend
Ionization energy generally decreases down a group.
Step2: Locate elements in periodic table
Kr (Krypton) and Rn (Radon) are in the noble - gas group. Rn is below Kr in the periodic table.
Step3: Determine the answer
Since ionization energy decreases down a group, Kr has a higher first - ionization energy (it requires more energy to remove an electron) compared to Rn. So the element that requires more energy to remove an electron is Radon.