29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
536589
45708
2
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
jan 1, 1857 - Carbon is Tetravalent
Description:
Friedrich August Kekulé von Stradonitz proposes that carbon is tetravalent, or forms exactly four chemical bonds.
Added to timeline:
11 Jan 2018
0
0
380
FINAL - Chemistry Timeline
Date:
jan 1, 1857
Now
~ 167 years ago