Cations are ions that are positively charged. Anions are ions that are negatively charged. Ions are charged atoms or molecules. If a balanced atom loses one or more electrons, it will become a ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American A while ago, I wrote a couple of posts ...

One day, during the spring semester of 1999, L. Bruce Railsback turned against one of science’s most visible icons: the periodic table of chemical elements. He was using a conventional periodic table ...

Ever stop to contemplate the size of an atom or ion? Martin Rahm, Roald Hoffmann, and Neil W. Ashcroft have. For consistency’s sake, these Cornell University scientists have just completed a ...