Ключевые слова: actinides, atoms, background, blue, calcium, carbon, concept, copper, design, education, element, flerovium, gases, graphic, halogens, hydrogen, information, lab, laboratory, lanthanides, learning, livermorium, magnesium, material, mendeleev, metals, nature, noble, numbers, oxygen, periodic, periodic table of elements, physics, poster, radioactive, school, science, science background, scientific, silicon, solid, symbols, table, technology, uranium, vectorial, wallpaper, white, xenon,