Artificial elemental transmutation of lead into other elements is not just fantasy, it’s entirely possible and happens in particle accelerators and nuclear reactors. It’s just extremely impractical as it’s an extremely slow process at anywhere near the particle fluxes we can practically achieve. Plutonium is made through a similar process (though the exact mechanism used to produce plutonium is relatively more efficient) as well as small quantities of useful radioisotopes, but it is also possible with lead.
Artificial elemental transmutation of lead into other elements is not just fantasy, it’s entirely possible and happens in particle accelerators and nuclear reactors. It’s just extremely impractical as it’s an extremely slow process at anywhere near the particle fluxes we can practically achieve. Plutonium is made through a similar process (though the exact mechanism used to produce plutonium is relatively more efficient) as well as small quantities of useful radioisotopes, but it is also possible with lead.
https://en.m.wikipedia.org/wiki/Nuclear_transmutation