Which statement about the random decay of the nuclei in a sample of uranium-238 is correct?
1 )
The probabilities of an alpha-particle, a beta-particle or a gamma ray being emitted from a nucleus in the sample are equal.
2 )
The probability of a nucleus in the sample decaying decreases as time passes.
The probability of a nucleus decaying in any ten minute interval is the same for all the nuclei in the sample.
4 )
The probability of a nucleus in the sample decaying increases as time passes.
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