1. Tardigrade
  2. Question
  3. Chemistry
  4. The paramagnetic element is:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The paramagnetic element is:

Bihar CECEBihar CECE 2001

Solution:

The ions having unpaired electron are paramagnetic. The ions having Paired electrons are diamagnetic.
image
(a) $ N{{i}^{2+}}=1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}},3{{p}^{6}},4{{s}^{0}},3{{d}^{8}} $
$ \therefore $ It has 2 unpaired electrons and is paramagnetic.
(b) $ S{{c}^{3+}}=1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}},3{{p}^{6}},4{{s}^{0}},3{{d}^{0}} $
$ \therefore $ It has no unpaired electrons and is diamagnetic
(c) $ C{{u}^{+}}=1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}},3{{p}^{6}},4{{s}^{0}},3{{d}^{10}} $
$ \therefore $ It has no unpaired electrons and is diamagnetic.
(d) $ Z{{n}^{2+}}=1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}},3{{p}^{6}},4{{s}^{0}},3{{d}^{10}} $
$ \therefore $ It has no unpaired electrons and is diamagnetic.