Astudent has an unknown sample. how can spectroscopy be used to identify the sample? it can identify the elements in the sample. it can determine the number of electrons in the sample. it can determine the ratio of the elements in the sample. it can determine the molecular structure of atoms in the sample.

The correct answer is:
It can identify the elements in the sample.

In fact, spectroscopy studies the light emitted by the atomic transitions of the elements. In particular, spectroscopy analyzes the frequencies of the light emitted by the different elements in the sample: since the energy levels of each element are different from those of another element, the frequencies of the emitted light are different for each element, and so by analyzing the frequency spectrum it is possible to infer which elements are contained in the sample.

The center is basically the heart of it