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 ...

Mendeleev discovered the periodic table (or Periodic System ... by putting them in order of increasing atomic weight, certain types of element regularly occurred. For example, a reactive non-metal was ...

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 ...

For example, the element symbol for iron is Fe, from the latin word ferrum for iron. On the periodic table, metals are found on the left and in the middle, and non-metals are on the right.

February 7 is National Periodic Table Day, when we celebrate the efforts of scientists over the centuries to figure out how different elements ...

The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract electrons towards itself within a chemical bond. This vital theoretical ...

And what could possibly be more earthy than the elements of the periodic table, which literally come ... from selenium and Rhode from rhodium, for example. Read on for a full list of boy, girl ...