Add Yahoo as a preferred source to see more of our stories on Google. The periodic table, also called the periodic table of elements, is an organized arrangement of the 118 known chemical elements.

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 ...

Christian Brückner started collecting more than 45 years ago when he was a young teenager in Germany and his father a metallurgist who’d bring home laboratory leftovers to feed his son’s growing ...

Chapters: 0:00 — The question: Why atoms are structured this way 1:30 — It's all about energy 2:48 — How the Schrödinger ...

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 ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...