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1 magg 1894 anni - Sir William Ramsay and Lord Rayleigh uncover noble gases, which were added to the periodic table as group 0.

Aggiunto al nastro di tempo:

1st Nine Weeks Honor Project Chemistry

18 ott 2018

0

0

454

Data:

1 magg 1894 anni

Adesso

~ 131 years ago

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