??????? ???????

??????? ????????? ??????? ??? ???? ????? ??? ???? ???? ????? ???????? ???????? ????? ?????? ???? ?????? ^[1]

???????

↑ "Dmitri Mendeleev | Biography, Periodic Table, & Facts | Britannica" . www.britannica.com ( ???????? ??????? ?????) . Retrieved 2021-11-24 .

??? ??? ???? ????????? ??????? ? ???? ?????? ???? ??????? ?????? ?????? ?????? ?????????