Scientists have discovered the elusive properties hidden within promethium, a rare earth element that has remained largely ...

Erik Pollock, a geoscientist at the U of A, is the lab manager of the University of Arkansas Stable Isotope Lab and the Trace Element and Radiogenic Isotope Lab.

Based on accepted cosmological models, hydrogen and helium were the only elements in the earl. These coalesced to form the ...

Understanding the origin of heavy elements on the periodic table is one of the most challenging ... with heavy elements and isotopes forged and then expelled out into space as the star is ripped ...

Physicists propose that high-energy photon jets from collapsing stars may be secret factories of heavy elements like ...

Heavy actinides—elements at the bottom of the periodic table, after plutonium—are radioactive, rare and chemically complex, ...

Scientists have puzzled over the origin of elements heavier than iron since the 1950s. Recently, LSU astrophysicist Eric ...

Group 7 of the periodic table is something ... because technetium isotopes have short half-lives compared with the age of red giants, this finding suggested that the element was being produced ...

Fusion reactions in stars between helium and two isotopes, carbon-13 and ... all processes and problems tie back to the Periodic Table, in which each element has an atomic number indicating ...