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