Fl

Flerovium

Like other synthetic elements, flerovium is highly unstable and has a very short half-life. Its most stable known isotope, flerovium-289, has a half-life of only about 1.9 seconds. This extreme instability is typical of synthetic elements, which generally become less stable as atomic number increases.

As with all synthetic elements, only a few atoms of flerovium have ever been produced. Flerovium is created through nuclear fusion reactions in particle accelerators, similar to other synthetic elements. It was first synthesized by bombarding plutonium-244 with calcium-48 ions.