11. This procedure, nuclear transmutation , while well documented for other elements, is still being developed for curium. 12. Kervran proposed that nuclear transmutation occurs in living organisms, which he called " biological transmutation ". 13. This is known as a nuclear transmutation . 14. The element is not changed to another element in the process ( no nuclear transmutation is involved ). 15. During these processes, the W boson charge induces electron or positron emission or absorption, thus causing nuclear transmutation . 16. Artificial nuclear transmutation has been considered as a possible mechanism for reducing the volume and hazard of radioactive waste. 17. The best-known classes of exothermic nuclear transmutations are nuclei like hydrogen are combined to form heavier nuclei such as helium. 18. When an electron neutrino collides with a lead nucleus, it causes a nuclear transmutation that ends with a neutron emission. 19. Fission is a form of nuclear transmutation because the resulting fragments are not the same element as the original atom. 20. :There is so much I don't know about nuclear transmutation , and I wonder how much of it is known to anyone.