If you think back to middle school chemistry, you’ll probably remember trying to memorize the Periodic Table of the Elements. Perhaps the Tom Lehrer song is still ingrained in your head: I wish my ...

Hafnium isn’t a particularly remarkable element. It’s not your explosive sodium, shimmering mercury or stinky sulfur. It’s a greyish metal and is commonly used as a neutron absorber in the control ...

The periodic table is part of the bedrock of chemistry education. Students use it to look up values like an element’s atomic mass, and it serves as a visual reference for the trends in physical ...