Eli5 : If nothing disappear, what happens to the atoms that disintegrate when their life is done (life span of an atom)

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Eli5 : If nothing disappear, what happens to the atoms that disintegrate when their life is done (life span of an atom)

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Answer 1

>If nothing disappear, what happens to the atoms that disintegrate when their life is done (life span of an atom)

Non-radioactive particles do not have a lifespan. They do not disintegrate. They are stable.

Radioactive particles decay into other, more stable, particles and radiation with an energy equivalent to the amount of mass lost during the decay. That energy doesn’t disappear. It’s still there, in the form of a *slightly warmer* room.