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29 dic 1912 anni - Bohr

Descrizione:

He created the cuantum atomic model.
He stated that chemical properties of an element were determined by the amount of electrons present in the outer orbits and an electron cloud can drop from one orbital to a lower orbital, emitting a photon of energy.

Aggiunto al nastro di tempo:

Data:

29 dic 1912 anni
Adesso
~ 112 years ago

Immagini: