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

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 ...

The Periodic Table is a well-organized chart that contains all 118 known elements in the universe. These elements are the ...

The zigzag, staircase, line in the diagram of the periodic table above separates the ... In fact, nearly 75% of elements are metals. A simple shorthand system is used for representing elements.