Last summer, when more than 8 million trillion calcium ions blasted a thin film of americium atoms nonstop for more than a month, the collisions generated four atoms of never-before-seen element 115, ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Measurements of an artificial radioactive element called lawrencium could revive an arcane controversy over the element’s position in the periodic table — and the structure of the table itself. An ...

Initially dedicated at the Lawrence Berkeley National Laboratory in Berkeley, California, on March 11, 2000. Rededicated at Lawrence Hall of Science in Berkeley on August 11, 2019, during the ...