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

However, he is remembered for his search for a pattern in inorganic chemistry. Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between ...

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

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

On the floor, there will be some soot, rust, and metals. The main reason for the molecule falling apart is that a lot of the heavier elements are not stable. Oganesson, which is number 118 ...

You interact with about two-thirds of the elements of the periodic table every day. Some, like carbon, oxygen, and nitrogen, make up our bodies and the air we breathe. Yet there is also a class of ...

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

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