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Sir William Ramasay Period (28 dic 1894 anni – 8 marzo 1898 anni)

Descrizione:

This is when Sir William Ramsay was reaserching the atomic elements known as the noble gases which is now a new family of elements.

Aggiunto al nastro di tempo:

Atomic Theory Timeline

14 set 2017

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646

Data:

28 dic 1894 anni

8 marzo 1898 anni

~ 3 years and 2 months

Immagini:

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