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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
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1 gen 1829 anni - Johann Dobereiner

Descrizione:

Johann Dobereiner was aware of 40 elements. He was able to see that some groups of three elements had similar properties and he named these groups 'triads'.

Aggiunto al nastro di tempo:

Data:

1 gen 1829 anni
Adesso
~ 195 years ago