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30 dic 1893 año - William Ramsay discoverded the noble gases.

Descripción:

He then added them onto the periodic table.
https://www.sciencelearn.org.nz/resources/1804-development-of-the-periodic-table

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Chemistry Project

1 oct 2018

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fecha:

30 dic 1893 año

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~ 131 years ago

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