Standard atomic weights, those numbers emblazoned under the elements on the periodic table, were once thought of as unchanging constants of nature. But researchers have tweaked the atomic weights of ...

For the first time in history, a change will be made to the atomic weights of some elements listed on the periodic table of the chemical elements posted on walls of chemistry classrooms and on the ...

We like to think of the periodic table of the elements as immutable. It isn’t. Its nether regions have for some time been filling up with new elements that physicists have forged from smaller atoms.

Figure 3: Molecular dynamic simulations of Au concentration as a function of time in a Au 0.6 Ag 0.4 wire as it is stretched. Our experiments were performed at room temperature and the simulations at ...