How did bohr's new model account for the periodic repetition of properties of the elements?

Bohr's model, based on quantized energy levels for electrons in an atom, explained the periodic repetition of elemental properties through the arrangement of electrons in these energy levels or shells. As elements are organized in the Periodic Table, their chemical behavior is influenced by the number and configuration of their outermost electrons. This arrangement leads to similar chemical properties within groups of elements, as those in the same group have the same number of valence electrons, resulting in comparable reactivity and bonding characteristics. Thus, Bohr's model provided a framework for understanding the trends observed in the periodic table.