Multi-purpose Fictional Chemical Element Needed
I am looking for some guidance in creating a chemical element. I want to know if it is scientifically plausible for a single fictional element to do all the things I need it to, even if at a stretch, and what sort of atomic mass and atomic number it would have? Or if I should just give in and not try to justify it?
The desired end results of this element are giant monsters, giant robots and attracting unwanted attention from space due to radiation signatures. So the necessary features of the element are;
Naturally occurring in the universe, rare though.
Primary source of energy for ecosystems evolved to consume it.
High potential energy output (Both within life evolved to consume it, and when harnessed by humans as a power source).
Capable of creating incredibly strong alloys.
Additional features that would be nice but not necessary;
Radiation produced isn't harmful but detectable.
Said radiation is capable of leaving the Earths atmosphere and being detected in outer space (Given sufficient travel time of course).
I would say yes. There's already a real-world element that does at least the first three and its name is uranium. …