Examine the two statements given below: (A) Line spectra provide...

Line spectra are characteristic of atoms. When an atom is excited, its electrons transition between discrete electronic energy levels, producing a spectrum consisting of distinct, separated lines. Thus, line spectra provide information regarding atomic structure.

Band spectra are characteristic of molecules. Molecules possess vibrational and rotational energy levels in addition to electronic energy levels. Transitions between these closely spaced levels produce groups of closely spaced lines that appear as continuous bands. Thus, band spectra provide information regarding molecular structure.

Therefore, both statements (A) and (B) are correct.