Which of the following descriptions correctly characterize the properties of alkali metals? (Choose all that apply).
Low ionization energy
Not reactive
Tend to lose a single valence electron
React with oxygen in the air
Form cations with +1 charge
Alkali metals have low ionization energy. They are very reactive and tend to lose a single valence electron. Thus, they form cations with +1 charge. They also react with oxygen in the air.