Unbinilium

Unbinilium is the temporary systematic name for element 120, a predicted superheavy element that has not been confirmed or officially named.

Atomic number: The number of protons in an atomic nucleus, which defines an element. Element 120 would have 120 protons, fixing its place beyond oganesson.
Heavy-ion fusion: A nuclear reaction in which two atomic nuclei collide and combine to form a heavier nucleus. Element 120 searches rely on fusing a projectile nucleus with a heavy target.
Dubna–Livermore superheavy-element collaboration: A Russian–American collaboration that synthesized several superheavy elements using accelerator experiments. The collaboration reported an early search for element 120 that did not establish its discovery.
Nuclear stability: The tendency of an atomic nucleus to resist radioactive decay or fission. The half-lives of element-120 isotopes are unknown and depend on competing decay processes.
IUPAC systematic element name: A temporary element name formed from digit roots and a standard suffix under IUPAC rules. Unbinilium encodes the digits 1, 2, and 0 as a placeholder before discovery and naming.
Calcium-48: A stable calcium isotope with 20 protons and 28 neutrons, used as a projectile in superheavy-element experiments. Its neutron-rich nucleus has been considered for fusion reactions aimed at element 120.
GSI Helmholtz Centre for Heavy Ion Research: A German research center that operates heavy-ion accelerators for nuclear and atomic physics. GSI experiments have searched for element 120 using fusion reactions with heavy targets.
Nuclear fission: The splitting of an atomic nucleus into lighter nuclei, often releasing energy and neutrons. Spontaneous fission may destroy element-120 nuclei before they can be detected.
Superheavy element: An element with a very high atomic number, typically produced through nuclear reactions and radioactive decay. Element 120 belongs to the region where nuclear instability makes synthesis and identification difficult.
Flerovium: The radioactive chemical element with atomic number 114, synthesized in heavy-ion fusion experiments. Experiments producing flerovium help test reaction strategies and nuclear models relevant to element 120.

Linked from 13 pages