Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Elements with atomic numbers 113, 115, 117, and 118 have been added ...

Creating mnemonic phrases can help you remember the order of elements, especially for the first 20 elements or specific groups. These phrases are general and are available on other free online sources ...

The two most promising potential element candidates are element 119, tentatively named ununennium, and element 120, aka unbinilium. These elements are so massive that they do not fit in any of the ...

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 ...

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 ...