JAMB - Physics (1993 - No. 35)
Natural radioactivity is the random spontaneous disintegration of the nuclei of heavy isotopes of certain elements with the emission of
\(\alpha\), X, and \( \beta\)
\(\alpha\), \(\beta\) and \(\gamma\)-rays
X, \(\alpha\), \(\gamma\)-ray
\(\alpha\), \( \beta\) and X-rays
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