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1 gen 1894 anni - Ajout des gaz nobles

Descrizione:

Les gaz nobles sont découverts par Sir William Ramsay et Lord Raleigh et ajoutés au tableau dans un nouveau groupe.

Aggiunto al nastro di tempo:

Ligne de temps électricité-atome-tableau périodique

ByDavid Crowley

23 apr 2019

0

0

1744

Data:

1 gen 1894 anni

Adesso

~ 131 years ago

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