Atomic spectroscopy techniques are generally more sensitive (for example, lower detection limits and better resolution) than molecular spectroscopy techniques for which principle reason? In your rationale, please elaborate on how your selected answer contributes to measurement sensitivity

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Atomic spectroscopy techniques are generally more sensitive (for example, lower detection limits and better resolution) than molecular spectroscopy techniques for which principle reason?

In your rationale, please elaborate on how your selected answer contributes to measurement sensitivity.

 

A. There are always more atoms than discrete molecules in a sample.

B. Atoms are easier to volatilize than the larger corresponding molecules.

C. Molecules are more reactive than atoms, causing unwanted by-products during analysis.

D. The range of attainable excited states is more restricted for atoms than for molecules.

E. 1 & 2