This page uses out understanding of the atomic model and the periodic table to explore the following observations: Character conversation: two pupils discussing PCl5 breaking the octet rule. They alos ...

The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...

What do all these things have in common? They all have a link to the periodic table, which turned 150 in 2019! Here are some fascinating elements that you may never have heard of, but definitely ...

February 7 is National Periodic Table Day, when we celebrate the efforts of scientists over the centuries to figure out how different elements ...