Tentatively called Administratum it has no protons or electrons and thus has an atomic number of 0.
However, it does have 1 neutron, 125 assistant neutrons, 75 vice neutrons and 111 assistant vice neutrons giving it an atomic mass of 312.
The neutrons are held together in a nucleus by a force that involves the continuous exchange of meson-like particles called morons.
As it has no electrons, Administratum is inert, but can be detected chemically as it impedes every reaction it comes into contact with.
According to NHS management, a minute amount of Administratum caused one reaction to take over four days to complete, when normally it would take less than a second.
Administratum has a normal life of three years when instead of decaying it undergoes a re-organisation in which assistant neutrons, vice neutrons and assistant vice neutrons exchange places and the atomic mass actually increases.
NHS staff have suggested the Administratum is know to be toxic at any concentration and can easily destroy any productive reactions where it allowed to accumulate.