We room being asked if the types is paramagnetic or diamagnetic so we have to determine theelectron construction ofCa2+ ion.
You are watching: How many unpaired electrons does calcium have
Recall that paramagnetic species have 1 or an ext unpaired electrons when diamagneticcontains0 unpaired electron.
To figure that out, let’s very first write theelectron construction of a neutral (uncharged) Ca atom.
Ground-state means that Calcium is in its shortest energy form (not in one excited state).
Neutral element: atomic number = # protons = # that electrons
Neutral Calcium (Ca):
• atomic number = 20• # of electrons = 20 e-
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Is the complying with ion diamagnetic or paramagnetic?
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