In nuclear magnetic resonance (NMR), what is the change that nuclei experience when they are exposed to the external magnetic field and electromagnetic radiation?
A)All nuclei assume the direction of the external magnetic field.
B)Some nuclei assume the direction of the external magnetic field, and some the opposite.
C)The nuclei assume random orientations.
D)All nuclei are oriented in the direction opposite to the external magnetic field.

Question

Quizplus · Accepted Answer

In NMR, when nuclei are exposed to an external magnetic field, they align either with or against the direction of the field, creating two energy states. Not all nuclei align in the same direction; some align with the field and some against it, leading to the phenomenon observed in NMR spectroscopy.

In Nuclear Magnetic Resonance (NMR), What Is the Change That