Ключевые слова: 3d, analyzing, atom, atomic, background, board, chemistry, communicate, communication, computer, element, email, experimentation, formula, ge, germanium, gold, golden, information, internet, key, keyboard, lab, laboratory, letter, mail, mendeleev, message, molecules, notebook, notepad, notepaper, nuclear, office, periodic, power, science, scientific, scientist, substance, table, technology, web, work, write, yellow,