State whether the following statements are true or false:
$(i)$ The $Bohr$ model cannot explain how atoms form molecules.
$(ii)$ The $Bohr$ model is accepted as the planetary model.
$(iii)$ Electrons in an atom do not absorb or emit energy while moving in a stationary orbit.
$(iv)$ The spectral lines of the $Brackett$ series are found in the ultraviolet region.

(N/A) $(i)$ True: The $Bohr$ model is limited to single-electron species and does not explain molecular bonding.
$(ii)$ True: The $Bohr$ model is often referred to as the planetary model of the atom.
$(iii)$ False: Electrons do not radiate energy while moving in a stationary orbit; they only emit or absorb energy during transitions between orbits.
$(iv)$ False: The $Brackett$ series lines are found in the infrared region,not the ultraviolet region.