Livermorium

Livermorium (chemical symbol: Lv) is a synthetic chemical element with atomic number 116. It is an artificially produced element, meaning it does not occur naturally on Earth, but is created in a device called a particle accelerator, where two types of atoms are collided together.

Livermorium belongs to the class of superheavy elements. Its atoms decay very rapidly by emitting alpha particles, making it impossible to produce a measurable quantity with which to test its ordinary chemical properties.

Discovery and recognition

The element was first synthesized at the nuclear research facility in Dubna, Russia, in collaboration with scientists from the United States working at the Lawrence Livermore National Laboratory. The method involved bombarding a curium target with calcium-48 ions. The result was recognized through the characteristic alpha decay chain produced by the new atom.

The name 'livermorium' derives from Livermore Laboratory. The name and symbol Lv were officially approved in the years following confirmation of the synthesis discovery. Before approval, a temporary name based on the atomic number was used.

Isotopes and stability

Several isotopes (atomic variants of the same element differing in neutron number) have been reported, with mass numbers around 290 to 293. Their half-lives (the time for half of the atoms to decay) are extremely short, measured in milliseconds. The heavier isotopes of the element are generally considered more stable than the lighter ones.

Position in the periodic table

In the periodic table, livermorium occupies group 16, which includes oxygen, sulfur, selenium, tellurium, and polonium. Chemical theory predicts it may behave as a solid metal at normal room temperature, but the effect of relativistic electron effects at such high atomic number could make its properties differ significantly from those expected for the group.