The periodic table, also called the periodic table of elements ... since a new isotope with a longer half-life (how long it takes 50% of that element to decompose) could be produced in the ...

This year, the periodic table of chemical elements celebrates its ... Most of his ideas have stood the test of time, despite being conceived long before we knew much about the stuff that makes ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance towards it, even though at the time few people were aware of it. Alexandre Béguyer de ...