That explained it better'n I did.<quoted text>
No 'decision' is made. Yes, the timing of a radioactive decay is porbabilistic. There is nothing that distinguishes a nucleus that is about to decay from any other nucleus of the same sort.
Yes, it is a probabilistic event that happens according to the laws of quantum mechanic, which are a-causal. No 'decisions' are made, so no intelligence is implied. But radioactive decays are NOT determined. There is nothing that happens 'just before' a decay that is any different than at any other time. In that sense, they are uncaused.
Sorry if reality doesn't correspond with your intuitions.