a Spinels are solids with the general formulaM²+ (M¹³+)₂ 04 (where M²+ and M¹³ are3+3+metal cations of the same or different metals).The best-known example is common magnetite,Fe3O4 [which you can formulate as(Fe³+)₂04].(Fe²+)A crystal of a spinelGiven its name, it is evident that magnetite isferromagnetic. How many unpaired electrons arethere in iron (II) and in iron(III) ions?Iron(II) ion:unpaired electron(s)Iron(III) ion:unpaired electron(s)

Aufbau principle states that electrons are assigned to orbitals in increasing order of energies. The…

Answered: agnetic. How many unpaired electrons a…

agnetic. How many unpaired electrons a in iron(II) and in iron(III) ions? I) ion: unpaired electron(s) II) ion: unpaired electron(s)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.

Question

a Spinels are solids with the general formula
M²+ (M¹³+)₂ 04 (where M²+ and M¹³ are
3+
3+
metal cations of the same or different metals).
The best-known example is common magnetite,
Fe3O4 [which you can formulate as
(Fe³+)₂04].
(Fe²+)
A crystal of a spinel
Given its name, it is evident that magnetite is
ferromagnetic. How many unpaired electrons are
there in iron (II) and in iron(III) ions?
Iron(II) ion:
unpaired electron(s)
Iron(III) ion:
unpaired electron(s)

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Step 1: Aufbau principle

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Step 2: Determination of electron configuration of Fe.

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Step 3: Determination of electron configuration of Fe2+ and Fe3+ ion.

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Step 4: Hund's rule

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