Eighty out of the first 82 elements in the periodic table have stable isotopes. Measuring and analysing their distribution allows for many practical applications. The IAEA assists Member States in ...

When the first periodic table was formulated by Mendeleev ... We know this because even the longest-lived isotope of the element has a half-life that is too short in comparison with the age ...

The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...

and the Facility for Rare Isotope Beams (FRIB) discuss the limit of the periodic table and revising the concept of the "island of stability" with recent advances in superheavy element research.

But there's at least one substance in the periodic table that was named in response to a nearby element ... later called curium. The first isotope of americium produced was americium 241, still the ...

Is the periodic table hanging in your lab ... a newly discovered radioactive isotope of carbon. Known as radiocarbon dating, this method provides objective age estimates for carbon-based objects that ...