Identify the most reactive alkali metal with water.
A) Cs
B) Rb
C) K
D) Na
E) Li

Question

Quizplus · Accepted Answer

Cs is the most reactive alkali metal as it has the largest atomic size and lowest ionization energy compared to other alkali metals. This makes it easier for Cs to lose an electron and react with water, producing more energy and heat than other alkali metals. As a result, Cs reacts explosively with water and must be handled with extreme caution.

Identify the Most Reactive Alkali Metal with Water