1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following has the maximum number of unpaired electrons ?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Which of the following has the maximum number of unpaired electrons ?

IIT JEEIIT JEE 1996Classification of Elements and Periodicity in Properties

Solution:

$Mg ^{2+} =1 s^{2} 2 s^{2} 2 p^{6}=$ no unpaired electron
$ Ti ^{3+} =1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{1}=$ one unpaired electron
$ V ^{3+} =1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{2}=$ two unpaired electrons
$ Fe ^{2+} =1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{6}=$ four unpaired electrons