Katherine Bourzac is a freelance journalist in San Francisco, California. For a little more than a century, chemists have known that strong atomic links called covalent bonds are formed when atoms ...

Chemistry students the world over are familiar with covalent bonds and hydrogen bonds. Now a study has revealed a strange variety of bond that acts like a hybrid of the two. Its properties raise ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...