10. Periodic Properties of the Elements

Which of the following sequences correctly places the elements Na, Mg, Al, and Si in order of increasing ionization energy?

Which of the following best defines the first ionization energy?

Which of the following best explains why a magnesium atom readily loses two electrons?

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

Which of the following elements has the lowest ionization energy?

Which pair lists the element with the lower first ionization energy first?

Which of the following best explains the general trends and exceptions observed in ionization energy across the periodic table?

Which of the following best explains why it is easier to remove a 2p electron from an oxygen atom than from a nitrogen atom?

What is the trend for ionization energy as you go down a group on the periodic table?

Which of the following best explains why alkali and alkaline earth metals tend to lose electrons easily?

Which of the following elements has the smallest ionization energy?

Which of the following elements has the greatest ionization energy?

Within a group on the periodic table, where would you expect the ionization energy to be the greatest?

Which of the following atoms has the highest first ionization energy, making it the most difficult to remove an electron?

Which of the following elements is predicted to have the greatest (most endothermic) first ionization energy?