# Problem: Is the following ion diamagnetic or paramagnetic? Na+

###### FREE Expert Solution

We are being asked if the species is paramagnetic or diamagnetic so we have to determine the electron configuration of Na+ ion

Recall that paramagnetic species have 1 or more unpaired electrons while diamagnetic contains 0 unpaired electron.

To figure that out, let’s first write the electron configuration of a neutral (uncharged) Na atom.

Ground-state means that Sodium is in its lowest energy form (not in an excited state).

Neutral element:       Atomic number = # protons = # of electrons

Neutral Sodium (Na):

Atomic number = 11
• # of electrons = 11 e-

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###### Problem Details

Is the following ion diamagnetic or paramagnetic?

Na+