23 h 42 m, 31 dez 1924 ano - Quantum Mechanical Model (1926)
Descrição:
 The quantum mechanical model of the atom uses complex shapes of orbitals (sometimes called electron clouds), volumes of space in which there is likely to be an electron. So, this model is based on probability rather than certainty. 
Adicionado na linha do tempo:
Data:
23 h 42 m, 31 dez 1924 ano
Agora
 ~ 100 years ago