Lesson Plans: The Periodic Table and Bonding Download inquiry-based ... Guidelines and Recommendations for Teaching Middle & High School Chemistry Learn to navigate the core concepts of chemistry ...

Recently, Chemistry Solutions caught up with Michael Dayah, creator of ptable.com — one of the first online periodic tables. We asked him to share his story about how he created ptable.com as a high ...

The zigzag, staircase, line in the diagram of the periodic table above separates the metals, on the left, from non-metals, on the right. Hydrogen is a non-metal, but it is often put in the middle.

You'll find it on the wall of nearly every school chemistry laboratory in ... This year, the periodic table of chemical elements celebrates its 150th birthday. As the candles on the cake are ...