independently of any atomic model:—(i) Three distinct regions of intra-atomic electrons exist, the number of which (say P, Q, R) may be calculated for each atom from the periodic system ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons ... However, there was still a difference between the atomic number of the atom and the atomic mass.

These deformations, associated with three distinct shapes ... and call for better theoretical models. While the coexistence of different shapes in the atomic nucleus has been known for over ...

Get Instant Summarized Text (Gist) The atomic nucleus of lead-208, previously thought to be perfectly spherical, has been found to be slightly elongated, resembling a prolate spheroid. This ...