Replace that old relic with a free updated periodic table from ACS Publications! This unit plan from the American Association of Chemistry Teachers has everything you need to put together a unit plan ...

The Periodic Table of Elements is a testament to the many millennia of human exploration of the chemical world. However, not everything is known about the elements that appear in its colored and ...

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz. The periodic table of elements is a ...