atomic mass

Since each of these 17 elements has a unique atomic mass — for example, only lead has an atomic mass of 0.34 trillion billionths of a gram — BSK could then determine the concentration of the metals.

"Many thousands of atomic nuclei that have yet to be measured may exist in nature," said Matthew Mumpower, a theoretical physicist and co-author on several recent papers detailing atomic masses research.

The team was able to determine that the r-process can produce atoms with an atomic mass of at least 260 before they fission.

Wallner is particularly interested in the radioactive iron isotope with the atomic mass of 60.

Twelve, named for the atomic mass of carbon, has developed a process to make jet fuel using renewable electricity, water and waste biomass CO2 instead of fossil fuels.