The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

Austin, James, James Heskett, and Christopher Bartlett. "Key Elements for Excellence in Classroom Cases and Teaching Notes." Harvard Business School Background Note 915-417, April 2015.

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can ...

So, today we're going to look at the periodic table. That thing that you see behind your teacher on the wall in science lessons. It actually tells us a lot about the elements that make up the ...

A chemical element is one of those squares on the periodic table that adorns many a classroom wall. Sure. But what is an element really? It is a more subtle question that you might realise.