29
/ru/
ru
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
75950
6442
2
Создать
Public Timelines
Библиотека
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
16 сент 1869 г. - Dmitri Mendeleev (1869) - put the elements into 7 groups with similar properties and discovered the Periodic Law
Добавлено на ленту времени:
27 сен 2017
0
0
528
Chem Project
Alyssa George, Riley Gloeckl, Grace Bair, Sonja Hebestreit
Дата:
16 сент 1869 г.
Сейчас
~ 154 г назад