8.36 Write down the number of 3d electrons in each of the following ions: $Ti^{2+}, V^{2+}, Cr^{3+}, Mn^{2+}, Fe^{2+}, Fe^{3+}, Co^{2+}, Ni^{2+} and\; \; Cu^{2+}$. Indicate how would you expect the five 3d orbitals to be occupied for these hydrated ions (octahedral).

For $Ti^{2+}$ d-orvbital has two electron. So, filling of d-orbitals can be $t^{2}_{2g}$

In $V^{2+}$  d-orbital has three electron. So, the filling of d-orbital can be $t^{3}_{2g}$
Similarily

 $Cr^{3+}$(Ions) $d^{3}$ (No. of d electrons) $t^{3}_{2g}$ (Filling of d-orbitals) $Mn^{2+}$ $d^{5}$ $t^{3}_{2g}, e^{2}_{g}$ $Fe^{2+}$ $d^{6}$ $t^{4}_{2g}, e^{2}_{g}$ $Fe^{3+}$ $d^{5}$ $t^{3}_{2g}, e^{2}_{g}$ $Co^{2+}$ $d^{7}$ $t^{5}_{2g}, e^{2}_{g}$ $Ni^{2+}$ $d^{8}$ $t^{6}_{2g}, e^{2}_{g}$ $Cu^{2+}$ $d^{9}$ $t^{6}_{2g}, e^{3}_{g}$

Related Chapters

Preparation Products

Knockout NEET Sept 2020

An exhaustive E-learning program for the complete preparation of NEET..

₹ 15999/- ₹ 6999/-
Rank Booster NEET 2020

This course will help student to be better prepared and study in the right direction for NEET..

₹ 9999/- ₹ 4999/-
Knockout JEE Main Sept 2020

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 12999/- ₹ 6999/-
Test Series NEET Sept 2020

Take chapter-wise, subject-wise and Complete syllabus mock tests and get in depth analysis of your test..

₹ 4999/- ₹ 2999/-