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 ...

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

The periodic table, also known as the periodic table of (the) chemical elements, is a tabular display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is ...

For the last fifty or so years, the periodic table has been incomplete. Elements after uranium on the periodic table have been synthesized for the past few decades, but there were always a few ...

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 ...

Can you believe the periodic table has been around for over 150 years? Take this quiz to see if you can find the elements. What information do we collect from this quiz? The periodic table is a ...

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

The main reason for the molecule falling apart is that a lot of the heavier elements are not stable. Oganesson, which is number 118, has a half-life of 0.7 milliseconds. Number 116, livermorium ...