The metals that are paramagnetic are Calcium, Magnesium, and Sodium. The correct options are A, B, and C.
A weak magnetic field supplied externally can weakly attract some materials, which then create internal magnetic fields that are directed in the same direction as the applied magnetic field. This phenomenon is known as paramagnetism.
Despite not having an unpaired electron, the metal magnesium exhibits paramagnetic behavior. Sodium is also paramagnetic.
Atoms that have their electrons coupled are said to be diamagnetic, whereas those that don't are said to be paramagnetic. However, despite having no free electrons, calcium is said to be paramagnetic.
Thus, the correct options are A, Calcium, B, Magnesium, and C. Sodium.
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