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

Nihonium (Nh), a radioactive synthetic element, joined the periodic table of elements in November five years ago with the atomic number 113. More than a century ago, a similar sounding but ...

The seventh row of the table was completed in 2016 when Tennessine, Nihonium, Moscovium, and Oganesson were added. Elements can be named after places, minerals, mythological figures, or people.