Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

North Carolina State University scientists discovered that some of the Miky Way galaxy's oldest stars might produce elements with atomic masses greater than 260. According to a statement by the ...

This new study, however, suggests that the r-process in the very first stars could have produced much heavier elements with ...

but element 101 was named Mendelevium after him, an even rarer distinction. It wasn’t until 1913, six years after Mendeleev’s death that the final piece of the puzzle fell into place. The periodic ...

The term ‘weighted mean mass’ takes into account the different contribution of each isotope to the overall mass. Relative atomic mass is not the same as mass number. Mass numbers close mass ...

Researchers have long been hunting for a way to make the elusive elements more stable so they can be better studied.

Advancements in nuclear physics suggest the possibility of discovering stable, superheavy elements. Researchers have found an ...

Researchers at Lawrence Berkeley National Laboratory say they have discovered a new way to create superheavy elements.

An isotope is named after the element and the mass number of its atoms. For example, carbon-12 is an isotope of carbon with a mass number of 12. The relative atomic mass of an element is the ...

Where does the periodic table of chemical elements end and which processes lead to the existence of heavy elements? An ...