Radon(RADN) Is a element which emits neutrons when under pressure bigger than 1.31. RADN has a appearance of a dark green color, it acts like NBLE, ionizes, but also emits neutrons and ligtning when sparked. When spawned has a temp of 78.00 Celcius. When a RADN particle emits a NEUT particle, it turns into NBLE. The bigger the life of RADN is the bigger the lightning will be when sparked. For example if life is 30 the lightning will be 30 particles. The tmp also gives the lightning its angle. It is mesured by degrees. The max is 359. The life value will range from 10 to 120. The tmp value ranges from 1 to 359. RADN will be located in the gas/radioactive section (mods choice.) RADN will kind of act like CAUS dissolving something if it touches it for at least 1 second, RADN will emit a NEUT particle and will turn into NBLE. Explodes when contacting NEUT.
I choose ff00dd00 for radon green.
In real life when radon is solid, its yellow so i think it could be better if the radon element was dark yellow.
You could even borrow a page from EXOT and have it change color with temperature. In real life, radon initially glows blue if placed in a glass container. It then turns yellow, and then changes to an orange-red glow.