Question

The number of unpaired electrons in ferrous ion is??

Answer 1

Now since we are given with Iron(II) we take out two electrons from the outermost orbit so as to give the iron a +2 charge. As evident from the configuration, in total there are 4unpaired electrons. Using the same logic you can count the number of unpaired electrons for any ion.

Answer 2

Now since we are given with Iron(II) we take out two electrons from the outermost orbit so as to give the iron a +2 charge. As evident from the configuration, in total there are 4 unpaired electron