Keywords: Дмитрий Иванович Менделеев 4.gif A portrait of Russian chemist Ð”Ð¼Ð¸Ñ‚Ñ Ð¸Ð¹ Иванович Ренделеев Dmitri Ivanovich Mendeleyev February 1834 2 Feb 1907 cite book Weeks Mary Elvira 1933 The Discovery of the Elements Journal of Chemical Education Easton PA 208 0766138720 CITEREFWeeks1933 author PD-old Dmitri Mendeleev |