Ключевые слова: 3d, atom, atomic, chemical, chemistry, clean energy, earth, element, energy, fission, fusion, icon, illustration, industry, material, metal, metallic, mine, mineral, natural, nuclear, nuclear energy, nuclear power, object, periodic, periodic table, physics, power plant, radiation, radioactive, radiometric, reactor, realistic, renewable, resource, rock, school, science, scientific, set, sign, solution, steel, stone, substance, symbol, table, technology, u, uranium,