So what is your view of radioactive decay.I'd suggest that the entity acting, or the property of the entity that gives rise to the subsequent event, or the circumstance(s) under which the entity with that property has to act as it does, or the prior event, or the law of nature under which the entity acts, could all be thought of as causes of the event in different senses.
But I think that the most fundamental of these senses has to be the entity (or entities) acting. Entities are all that exist - properties are really just aspects of entities that we isolate mentally for study, and laws are generalizations we form about how entities act.
I'm sure that something along these lines is true, but my exact formulation may be off. I'd appreciate input.
Radioactive decay is a stochastic (i.e. random) process at the level of single atoms. According to quantum theory, it is impossible to predict when a particular atom will decay, regardless of how long the atom has existed.
There is no event that triggers it, no entity acting on it. To me this is uncaused, though it is following the laws of nature.