In the 1980s and 1990s, Roberto noted, scientists at the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany, ran “cold fusion” experiments that extended the periodic table from ...

Heavy ligands such as polyoxometalates are opening a new frontier in actinide chemistry. Studying materials that are both radioactive and rare presents significant challenges. The elements that follow ...

They all have a link to the periodic table, which turned 150 in 2019 ... Curium is made by bombarding plutonium with helium ions and makes this list because its compounds glow in the dark.

The ions formed have a full outer electron shell, so are very stable. See the study guide on groups in the periodic table for more information.