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Oxidation Numbers03:14

Oxidation Numbers

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In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
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Balancing Redox Equations02:58

Balancing Redox Equations

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Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
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Oxidation–Reduction Reactions
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Redox Equilibria: Overview01:23

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A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
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Properties of Transition Metals02:58

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Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
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Oxidation of Alcohols02:37

Oxidation of Alcohols

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In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
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Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
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In defence of oxidation states.

Nicholas C Norman1, Paul G Pringle1

  • 1University of Bristol, School of Chemistry, Bristol, BS8 1TS, UK. n.c.norman@bristol.ac.uk.

Dalton Transactions (Cambridge, England : 2003)
|November 26, 2021
PubMed
Summary

This perspective addresses criticisms of oxidation states in inorganic chemistry teaching. Both the Oxidation State and Covalent Bond Classification methods are valuable, with no single approach suiting all teaching needs.

Area of Science:

  • Inorganic Chemistry
  • Chemical Education

Background:

  • Criticisms exist regarding the application of oxidation states in chemical education.
  • The Oxidation State method is a common approach in teaching inorganic chemistry.

Purpose of the Study:

  • To address criticisms concerning the use of oxidation states.
  • To compare and contrast the Oxidation State method with the Covalent Bond Classification method for teaching inorganic chemistry.

Main Methods:

  • Comparative analysis of two distinct chemical teaching methodologies.
  • Literature review and critical evaluation of existing pedagogical approaches.

Main Results:

  • Both the Oxidation State and Covalent Bond Classification methods possess unique strengths and limitations.

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  • Neither method is universally applicable or superior in all educational contexts.

    • Conclusions:

    • Both methods are important tools for teaching inorganic chemistry.
    • Educators should recognize the limitations of any single model and adopt a flexible approach.