Quantum Mechanical Model (nov 26, 1926 – jan 28, 1930)
Description:
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.Added to timeline:
Date:
nov 26, 1926
jan 28, 1930
~ 3 years and 2 months