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

Can France claim the first periodic table? Probably not ... followed by a very reactive light metal and then a less reactive light metal. Initially, the table had similar elements in horizontal rows, ...

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

The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a little over 150 years. The handy visual reference guide organizes known ...

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 ...

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...

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 ...