So, the new element.
It says it decays into neutrons, but so far it seems like its mass never decreases. It just stays a small pile of it, happily radiating.
I dont know if thats intentional, but if its not... Well, I reported it here.
Probably just bad wording. It does decay and NEUT comes off of it, eventually it turns gray and stops emitting anything. It never actually loses particles though.