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 ...

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 ...

Each element has unique chemical properties and is fundamental to understanding the composition and behavior of matter in the ...

The Atomic Mass Data Center and its electronic bulletin are tools for the exchange of information on experimental masses, evaluation of masses, extrapolation of masses, and theoretical masses. One of ...

Mendeleev never received a Nobel Prize for his work, 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 ...

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

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 ...

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 ...

Elements in Physics beyond the Standard Model with Atomic and Molecular Systems presents novel atomic and molecular systems as a platform to study physics beyond the Standard Model, based on the ...

Physicists have synthesized the element livermorium, which has the atomic number 116, using an unprecedented approach 1 that promises to open the way to new, record-breaking elements. The heaviest ...