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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Spinels are described in Study Question 53. Consider two normal spinels, CoAl2O4 and SnCo2O4. What metal ions are involved in each? What are their electron configurations? Are the metal ions paramagnetic, and if so how many unpaired electrons are involved?

Interpretation Introduction

Interpretation:

The metals involved in the spinels, electronic configuration of the metal and the magnetic property of the metal has to be identified.

Concept introduction:

Spinels:

The spinels are any of a class of minerals of general formulation AB2X4 which are cubic (isometric) crystal system.

Explanation
  • The spinels is CoAl2O4 complex.

It has two metals namely cobalt and aluminium.

The electronic configuration of cobalt is [Ar] 3d7 4s2

The electronic configuration of aluminum is [Ne] 3s2 3p1

Therefore the according to the electronic configuration of spinels, the magnetic properties are given below

Co2+ has three unpaired electron, therefore it is paramagnetic nature.

Al3+ has no unpaired electron, therefore it is diamagnetic nature.

CoAl2O4:Themetalsarecobaltandaluminium.Co2+, paramagneticproperty.Al3+,Diamagneticproperty.

  • The spinels is SnCo2O4 complex

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