World's Oldest Periodic Table Found in Storage For electrons, the shell levels are full at 2 in the first, 8 in the second, and so forth. Overall, the numbers representing full-up electron shells ...

The elements were placed in the periodic table’s seventh row, which is above the row of lanthanides and the row of actinides. In the 1980s and 1990s, Roberto noted, scientists at the GSI Helmholtz ...

Some of the periodic table’s more familiar elements are already affected by special relativity. The theory explains why gold has a yellowish hue and why mercury is liquid at room temperature ...

An international team of researchers, led by scientists from GSI/FAIR in Darmstadt, Germany, has studied r-process ...

Arranging the periodic table by elemental properties is tempting, but it requires chemists to characterize those properties. For SHEs, that means making isotopes that are stable enough to ...

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 ...

Scientists have created six new isotopes of the superheavy elements, reaching in an unbroken chain of decays from element 114 down to rutherfordium. The discovery is a major step toward ...

Here’s how long the periodic table’s unstable elements last. Some of these isotopes have half-lives of seconds or less, while others last and last ...