In spite of the nucleus being crucial to NMR in that the technique is only useful with certain configurations of the nucleus, [https://www.youtube.com/watch?v=TJhVotrZt9I the electrons of an atom do influence how much an atom is diamagnetically shielded from the effects of RF.]
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In spite of the nucleus being crucial to NMR in that the technique is only useful with certain configurations of the nucleus, [https://www.youtube.com/watch?v=TJhVotrZt9I an atom's configuration of electrons does influence how much an atom is diamagnetically shielded from the effects of RF.]. We use this to our advantage because different electron will resonate at different frequencies.
* Ultimately, you are producing a spectrum with NMR.
* Ultimately, you are producing a spectrum with NMR.