Theo Gray collects elements and has put together this awesome Periodic Table Table. This week Reactions explores the science and chemistry going on inside this periodic table. Step into his office, ...

Almost everyone has seen the Periodic Table of the Elements, the chart gracing walls of science classrooms that shows relationships between the chemical elements that make up everything on Earth — and ...

We look at the chemistry of gallium, the science behind the holes in the periodic table. We look at the chemistry of gallium, the science behind the holes in the periodic table, and the history of how ...

Japanese scientists have made a new (nu?) periodic table organized by the number of protons in the nucleus instead of the element’s number of electrons. They call it the Nucletouch table, and where ...

118 elements and seven periods, though just one period of high school chemistry is enough to get confused by it. This week, we’re exploring the history behind the periodic table.

This lesson utilizes an adaptation of the board game Periodic: A Game of the Elements to help students better understand both general periodic trends and the law of conservation of energy. This ...