Copper has been used by humans for as much as 7000 years and elements such as gold ... The zigzag, staircase, line in the diagram of the periodic table above separates the metals, on the left ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can ...

Bismuth, the 83rd element in the periodic table, has been known since ancient ... It is commonly obtained as a by-product in copper, lead and tin mining, and is therefore relatively inexpensive ...

This is the second part of a three-part series written by Carolyn Krause. Many of the elements were synthesized using an Oak ...

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 ...