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Up until a decade or two ago, tritium--which emits alpha radiation--was commonly on wristwatch dials, precisely because they were not dangerous. Alpha radiatio
by mcswell 7y ago
Up until a decade or two ago, tritium--which emits alpha radiation--was commonly on wristwatch dials, precisely because they were not dangerous. Alpha radiation is easily stopped; it's only dangerous if you breathe it (or drink it, if that's even possible).
- microtherion 7y agoTritium emits beta radiation. It would be an interesting trick for an atom to emit radiation with a higher weight than itself. It might also be worth pointing out that "It must be safe! They even put it on wristwatch dials!" is not, historically, a sound argument.