10. Periodic Properties of the Elements

Which of the following elements has the highest first ionization energy?

Which of the following best describes how the first ionization energy changes within a group and across a period in the periodic table?

Why does ionization energy tend to decrease from top to bottom within a group on the periodic table?

Why does ionization energy generally increase as you move from left to right across a period in the periodic table?

Which of the following elements has the highest first ionization energy?

Which pairs of elements within a period are exceptions to the general increase in first ionization energy across the period?

Which group in the periodic table is characterized by high ionization energies but very weak electron affinities?

Which of the following elements will have a lower ionization energy than scandium (Sc)?

Why does ionization energy decrease as you go down a group on the periodic table?

Which of the following best explains how ionization energy affects the reactivity of an element?

Why does ionization energy generally increase from left to right across a period on the periodic table?

Which of the following species will have the highest ionization energy?

The third ionization energy of bromine is the energy required for which of the following processes?

Which statement correctly describes the trend in ionization energy within a group of the periodic table?