Americium-243 transforms by α-emission into 239Np, which converts by β-decay to 239Pu, and the 239Pu changes into 235U by emitting an α-particle.
Americium-243 transforms by α-emission into 239Np, which converts by β-decay to 239Pu and the 239Pu changes into 235U by emitting an α-particle.