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<p>[QUOTE=&quot;Conder101, post: 614857, member: 66&quot;]There are several different isotopes of radioactive gold <a href="http://education.jlab.org/itselemental/iso079.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://education.jlab.org/itselemental/iso079.html" rel="nofollow">http://education.jlab.org/itselemental/iso079.html</a></p><p><br /></p><p>It looks like only the lighter ones the really light ones where a significant portion of the sample undergo alpha decay could be dangerous externally but they have short half lives.&nbsp; Isotopes that undergo beta decay could be dangerous if taken internally.&nbsp; The only one with a long half life is gold 195 but it is pretty harmless.&nbsp; It captures an electron and becomes Platinum 195 which is stable.[/QUOTE]</p><p><br /></p>

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