A case in point: what science classroom didn’t have a periodic table of the elements ... 3D and we suppose that’s the animations of the Bohr model for each atom. You can debate if it is ...

Bohr created his own version of the table in 1922, based on experimental measurements of electron energies (along with some guidance from the periodic law). Bohr’s table added elements ...

Bohr noted that recurring patterns in those arrangements were responsible for the periodicity of chemical properties that the periodic table depicted. In 1922 he produced a version of the table ...