Compounds made from non-metal elements that are bonded together usually form molecules. Compounds including both a metal element and a non-metal element bonded together do not form molecules.

How Elements Form Compounds Video Clip | 3:22 Examine how elements form compounds by watching two sodium reactions: a spectacular explosive reaction with water; and an exciting reaction with chlorine.

"When xenon is squashed by extreme pressures, its chemical properties are altered, allowing it to form compounds with other elements," Lobanov explained.

How a planet comes together has implications for whether it captures and retains the volatile elements, including nitrogen, carbon and water, that eventually give rise to life, according to ...

Collect and gather elements form compounds and molecules and battle your way through a dystopian future. In this game you will learn some chemistry concepts and develop/deepen your knowledge of ...