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词汇 transition metal
释义

Definition of transition metal in English:

transition metal

(also transition element)
noun
Chemistry
  • Any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g. iron, manganese, chromium, and copper. Chemically they show variable valency and a strong tendency to form coordination compounds, and many of their compounds are coloured.

    〔化〕过渡金属

    Example sentencesExamples
    • Iron and copper are the transition metal ions that are involved in the catalytic process of ROS generation.
    • Manganese as a transition metal, one of the elements that occur in the middle of the periodic table in Rows 4, 5, and 6 between Groups 2 and 13.
    • Tungsten is a transition metal, one of the elements that occupy the middle of the periodic table.
    • Rhodium can be classified as a transition metal, a member of the platinum group of metals, and as a precious metal.
    • We also observed qualitatively distinct behavior between the alkali-earth metal ions and the divalent transition metal ions in their action on the charged viruses.

Definition of transition metal in US English:

transition metal

(also transition element)
nountrænˈzɪʃən ˈmɛdl
Chemistry
  • Any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g., iron, manganese, chromium, and copper. Chemically they show variable valence and a strong tendency to form coordination compounds, and many of their compounds are colored.

    〔化〕过渡金属

    Example sentencesExamples
    • Tungsten is a transition metal, one of the elements that occupy the middle of the periodic table.
    • Iron and copper are the transition metal ions that are involved in the catalytic process of ROS generation.
    • Rhodium can be classified as a transition metal, a member of the platinum group of metals, and as a precious metal.
    • We also observed qualitatively distinct behavior between the alkali-earth metal ions and the divalent transition metal ions in their action on the charged viruses.
    • Manganese as a transition metal, one of the elements that occur in the middle of the periodic table in Rows 4, 5, and 6 between Groups 2 and 13.
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