A new study lays the groundwork to expand the periodic table with a search for element 120, to be made by slamming electrically charged titanium atoms, or ions, into a californium target.

Looking at elements still within the periodic table, they could not find elements with high enough mass densities to explain what has been observed of asteroid 33 Polyhymnia, even if they were ...

A longstanding mystery of the periodic table involves a group of unique elements called lanthanides. Also known as rare earth ...

The other six are rutherfordium, dubnium, seaborgium, flerovium, livermorium and oganesson, the last chemical on the current periodic table. For Ivanov, one of the scientists who led the study, ...

Since the turn of the century, six new chemical elements have been discovered and subsequently added to the periodic table of elements, the very icon of chemistry. These new elements have high ...

Instead, they may be made of naturally occurring "superheavy elements" beyond those listed in the periodic table — our current best catalog of 118 chemical elements — new research suggests.

Dmitri Mendeleev, who arranged the first version of our current table, predicted the existence and properties of undiscovered elements that would fill the open spaces in his table. Learn more about ...

Elements beyond the periodic table have been modeled, with physicists predicting their properties. The Arizona team did the same using the relativistic Thomas-Fermi model of the atom, attempting ...