It’s interesting and illuminating to get the data and make one’s own sketch. I annotated each link with the half-life and the nature and energy of the particles emitted (yes, let’s be quantum-mechanical and call gamma ray photons as particles). The end of the chain wouldn’t fit on one page, so there’s a second page, on which I scribbled information on a number of radionuclides. The featured image has, of course, nothing to do with radioactivity other than showing something in the natural world, but it’s interesting. Hippos are a real hazard to people who live near them!