29
/pt/
pt
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
1928205
159213
2
Criar
Public Timelines
Biblioteca
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
18 jul 1945 ano - Glenn Seaborg recognizes lanthanides and actinides, placed below the periodic table.
Adicionado na linha do tempo:
18 out 2018
0
0
266
1st Nine Weeks Honor Project Chemistry
Data:
18 jul 1945 ano
Agora
~ 78 years ago