1 jan 1862 ano - Alexandre Béguyer de Chancourtois
Descrição:
His principal contribution to chemistry was the 'vis tellurique' (telluric screw), a three-dimensional arrangement of the elements constituting an early form of the periodic classification, published in 1862.
De Chancourtois was the first to use a periodic arrangement of all of the known elements, showing that similar elements appear at periodic atom weights.
Adicionado na linha do tempo:
Data: