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1 ene 1894 año - Sir William Ramsay and Lord Rayleigh discovered noble gases.

Descripción:

Sir William Ramsay and Lord Rayleigh discovered noble gases and added them to the periodic table. They grouped it as Group 0.

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The Historical Development of the Period Table

ByJoshua Martin

20 ene 2020

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1 ene 1894 año

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~ 131 years ago

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