D

Step 1: Understanding magnetic moments. The magnetic moment is a vector quantity that represents the magnetic strength and orientation of a material's magnetism.
Step 2: Not all atoms have a permanent magnetic moment. Only certain atoms, particularly those with unpaired electrons in their outer shells (like transition metals), exhibit permanent magnetic moments.
Step 3: In the presence of an external magnetic field, some atoms can align their magnetic moments with the field, but not all elements exhibit the same behavior.
Step 4: Evaluation of Options:

• Option A: Incorrect - not all elements have magnetic moments.
• Option B: Incorrect - many elements do have a magnetic moment.
• Option C: Incorrect - while some materials can acquire a magnetic moment in a field, the behavior varies across different elements.
• Option D: Correct - none of the previous statements accurately describe magnetic moments in atoms of different elements.

Conclusion: The only accurate statement is that none of the provided options correctly describes the behavior of magnetic moments in different elemental atoms.