33
/it/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
3741311
342631
2
Public Timelines
FAQ Ricevere il Premium

31 dic 1912 anni - Niels Bohr

Descrizione:

Planetary Model
Electrons orbited the nucleus in fixed orbits of differing energy levels.
Positive - Stable electron orbits with emission spectra.
Negative - Doesn't work for heavier elements.

Aggiunto al nastro di tempo:

Data:

31 dic 1912 anni
Adesso
~ 112 years ago