Eric Walker added ‘It’s like the embers in a barbecue pit.’ Nuclear reactions are smoldering again at Chernobyl | Science | AAAS to Gadolinium nitrate, and added Gadolinium nitrate to Nitrate salt and Gadolinium

Eric Walker added Gadolinium nitrate to Gadolinium, and added Gadolinium to Chemical elements

Eric Walker added a number of topics and We found a new type of stellar explosion that could explain a 13-billion-year-old mystery of the Milky Way's elements and Is It Time to Upend the Periodic Table? - The New York Times to Chemical elements, and added Chemical elements to Chemistry and Atoms, molecules, chemicals, minerals, materials and compounds