For elements 93-118, which are lab-created trans-uranium elements (elements beyond uranium, which has an atomic number of 92), there is no "natural" abundance, according to the Los Alamos National ...

“A superheavy element is any element with 104 or more protons in its nucleus, or an atomic number of 104 or higher,” Roberto said. Heavy ion bombardment of actinides at Lawrence Berkeley National ...

First, a little chemistry refresher. Elements are defined by the number of protons in their nucleus. Six protons and it’s carbon, 26 protons mean iron, 92 uranium.