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Transition metals have variable oxidation states.

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SUPPORTED
the evidence backs this
Recorded sources
8 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that transition metals have variable oxidation states?

Yes. Multiple chemistry textbooks and peer-reviewed sources state directly that transition metals have variable oxidation states, with several explaining this via partially filled d-subshells. A few additional sources mention variable oxidation states only for specific metals or oxides.

Verdict: SUPPORTED · 8 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 8
Transition Metals 2
2021
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Transition Metals 2. (2021). doi.org. https://doi.org/10.1093/hesc/9780198757153.003.0015

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More for · 7
Free Radicals as a Source of Uncommon Oxidation States of Transition Metals
2018
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Free Radicals as a Source of Uncommon Oxidation States of Transition Metals. (2018). doi.org. https://doi.org/10.1201/9780203747605-4

Introduction to Metal Complexes: A Special Reference to Oxidation States
2024
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Introduction to Metal Complexes: A Special Reference to Oxidation States. (2024). doi.org. https://doi.org/10.2174/9789815238723124010002

OCR A2 chemistry revision guide
2012
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OCR A2 chemistry revision guide. (2012). archive.org. https://archive.org/details/ocra2chemistryre0000unse

Inorganic biochemistry : an introduction
1993
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A.), C. J. A. (. (1993). Inorganic biochemistry : an introduction. archive.org. https://archive.org/details/inorganicbiochem0000cowa_q5e8

A2 chemistry for AQA. Revision guide
2009
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Sandra, C. (2009). A2 chemistry for AQA. Revision guide. archive.org. https://archive.org/details/a2chemistryforaq0000clin

Recent progress of catalytic methane combustion over transition metal oxide catalysts
2022
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Gao, Y., Jiang, M., Yang, L., Li, Z., Tian, F., & He, Y. (2022). Recent progress of catalytic methane combustion over transition metal oxide catalysts. doi.org. https://doi.org/10.3389/fchem.2022.959422

An overview of the synthesis, structure, biological activity and catalytic application of bis(salicylidine) complexes of cobalt
2025
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Middya, P., Karmakar, S., Chakraborty, A., & Chattopadhyay, S. (2025). An overview of the synthesis, structure, biological activity and catalytic application of bis(salicylidine) complexes of cobalt. doi.org. https://doi.org/10.1016/j.rechem.2025.102820

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