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1 ene 1868 año - Mendeleyev

Descripción:

He formulated the Periodic Law. and created a farsighted version of the periodic table of elements. Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table. He also left gaps for undiscovered elements.

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9 feb 2020
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fecha:

1 ene 1868 año
Ahora mismo
~ 157 years ago