5 ms·Gold is sold by weight, so those extra neutrons are pure profit.by cobbal 2y agoGold is sold by weight, so those extra neutrons are pure profit.mr_toad 2y agoUnfortunately all the heavy isotopes of gold are unstable and will decay in a few months.saithir 2y agoThat sounds like the buyer's problem though.itishappy 2y agoShhh, don't tell that to my buyer!