A fiery temperament of alkali metals

Chemistry Level 1

The alkali metals are a group in the periodic table consisting of the chemical elements lithium (\(\ce{Li}\)), sodium (\(\ce{Na}\)), potassium (\(\ce{K}\)), rubidium (\(\ce{Rb}\)), cesium (\(\ce{Cs}\)), and francium (\(\ce{Fr}\)). Because of their high reactivity, they must be stored under oil to prevent reaction with air. They are found naturally only in salt and never as a free element. Which of following best explains their high reactivity?

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.