Elements in group 1 and group 2 are metals ... See the study guide on groups in the periodic table for more information.

such as metals or gases, while also giving each individual element its own chemical symbol. In this periodic table of ...

That’s why this periodic table clock really caught our eye. [gocivici]’s idea is a simple one: light up three different elements with three different colors for hours, minutes, and seconds ...

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.

The periodic table of elements—also known as Mendeleev’s table—was developed in 1869 by Russian chemist Dmitri Mendeleev. It organizes all known chemical elements by their atomic number ...

You interact with about two-thirds of the elements of the periodic table every day. Some, like carbon, oxygen, and nitrogen, make up our bodies and the air we breathe. Yet there is also a class of ...