" Periodic Table" is a table in which elements, which are basic units constituting substances, are arranged such that their physical or scientific properties are similarly aligned. The periodic table, ...

The periodic table arranges all the chemical elements in a specific way. Patterns are visible in the way that elements behave, and this allows us to make predictions about other elements. Gethin: And ...

he left gaps for yet to be discovered elements he switched the order of a few elements to keep the groups consistent Iodine has a lower relative atomic mass than tellurium. So iodine should be placed ...

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 ...