1 janv. 1864 - John Newlands
Description:
An English scientist called John Newlands put forward his Law of Octaves in 1864. In which, he arranged all the elements known at the time into a table in order of relative atomic mass. When he did this, he found that each element was similar to the element eight places further on.Ajouté au bande de temps:
Date:
1 janv. 1864
Maintenaint
~ Il y a 161 ans