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

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

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

The seventh row of the table was completed in 2016 when Tennessine, Nihonium, Moscovium, and Oganesson were added. Elements ...

National Periodic Table Day, observed annually on February 7, honors one of the most significant achievements in scientific ...

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

The colors of rubies and emeralds are so striking that they define shades of red and green - ruby red and emerald green. But ...

One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...