The zigzag, staircase, line in the diagram of the periodic table above separates ... Hydrogen is a non-metal, but it is often put in the middle. Notice that most elements are metals, rather ...

An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest ...

Spraying Windex onto the samples produces a color that depends on the metal residing in the dirt ... we asked clubs to create elements of the periodic table featuring a mole. The Period Table of ...

Our bodies require other elements, including non-metal elements such as phosphorus ... These are almost one-quarter of the periodic table and are mainly found in the first four periods.