30
/fr/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
June 15, 2024
1973521
159782
2

31 juill. 1777 - Antonie De Lavoisier

Description:

Defined the word element as a pure substance that could not be chemically broken down into similar substances. Discovered 23 elements and recognized mixtures exist and identified air as a mixture of oxygen and some other gas.

Ajouté au bande de temps:

29 oct. 2018
0
0
328

Date:

31 juill. 1777
Maintenaint
~ Il y a 247 ans