====== Flerovium ======

The existence of element //Flerovium// (previously known as //Ununquadium//) (element 114) was confirmed in January 2009 at Berkeley, US. It appears to behave as the first superheavy element that shows noble-gas-like properties - possibly due to relativistic effects caused by extreme velocities in its electron shells.

It is extremely radioactive, and has a half-life of around 2 seconds.

• Its appearance is unknown. • Its category is unknown (but, as noted above, it's suspected to resemble the noble gases, i.e. neon, argon, xenon etc.). • Its phase properties (gas/liquid/solid) are unknown.

All info via  [[http://en.wikipedia.org/wiki/Ununquadium|Wikipedia]]

Note: //Flerovium// is just one example of a group of 'synthetic' (i.e man-made rather than naturally occurring) elements that have been created in laboratory conditions. Many have only been made in quantities of just a few atoms - and most tend to decay very rapidly. For those reasons, the physical properties of such elements are generally unknown.

Examples include //Moscovium, Bohrium, Oganesson, Darmstadtium, Meitnerium, Roentgenium, Tennessine, Seaborgium, Livermorium// etc.

There are likely to be many more, as yet unmade, as predicted by the [[https://en.wikipedia.org/wiki/Island_of_stability|'Island(s) of Stability']] theory.