Cascadium
Properties
Atomic Number: 119
Mass number 313-329 (Shifts Between)
Electrons per shell: 2, 8, 18, 32, 32, 18, 8, 2 (Predicted)
Phase at STP: Solid
Melting point: 503 Kelvin
Boiling point: N/A (Readily Combusts boiling)
Density: 8.3 g/cm^3
Natural occurrence: Naturally Occurring
Crystal Structure: Body-Centered Cubic (BCC)
Named For: The Planet Cascadia
Cascadium, or referred to in most scientific circles as Element 119, is a naturally occurring Alkali metal in most Terrestrial planets, that is extremely volatile when not in contact with a Neutralizer Agent, Silicon, or any Transition Metals (With Exception to Periods 6-7).
Cascadium in Power
Cascadium is inherently unstable, holding the current highest Atomic Number and Mass Number. As such, special precautions must be undertaken to prevent it from cracking the world its being harvested from. For example, Companies in Blazefelt Pass will wait for a naturally formed fissure before attempting to even extract the material.
In order to safely move Cascadium around, Neutralizer Agents (Like H3Xe2Si9) have been developed, which are shown to bind to the Body Centric Cubic Structure of Cascadium, leading to it becoming temporally Inert, allowing for easy transportation in Atmosphere, or exoatmospheric, should the need arise.
Cascadium Generators are generally made of W2Si8Al4, a special compound that can resist the intensive heat of a Cascadium Reaction. Cascadium Reacts naturally with air, so once Cascadium (stripped of Neutralizer) is placed into the Generator usually with another Reactant (Thorium or Neptunium), it immediately reacts, leading to intense heat and pressure, which allows for a small feedback loop to form, allowing for the reuse of the Material for 20~ Years or so, before the pressure becomes to high, requiring the Pressure to be relieved, in a Process known as Venting. However, this releases Cascadium-Thorium Fusion Byproduct, extremely toxic and is extremely hard to clean up.