transition metal

noun

: any of various metallic elements (such as chromium, iron, and nickel) that have valence electrons in two shells instead of only one

called also transition element

Examples of transition metal in a Sentence

Recent Examples on the Web
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One feature of compounds made with transition metals is their intense color. Daniel Freedman, The Conversation, 4 Feb. 2025 Crystal field theory makes predictions about how a transition metal ion’s structure is affected by the other atoms surrounding it. Daniel Freedman, The Conversation, 4 Feb. 2025

Word History

Etymology

from their being transitional between the more highly and the less highly electropositive elements

First Known Use

1929, in the meaning defined above

Time Traveler
The first known use of transition metal was in 1929

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Cite this Entry

“Transition metal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transition%20metal. Accessed 13 Mar. 2025.

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