what is chromium chemical

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Transition element

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  • What is chromium?

  • What is Chromium? 1 Chromium is a chemical element with atomic number 24 and represented by the symbol Cr in the Periodic Table. 2 Chromium is a lustrous, hard metal that has a silver-grey colour. … 3 The electron configuration of chromium is [Ar]3d 5 4s 1, which can be explained by the stability offered by a half-filled d-orbital. More items…

  • What is the atomic number of chromium?

  • Chromium is a chemical element with atomic number 24 and represented by the symbol Cr in the Periodic Table. Chromium is a lustrous, hard metal that has a silver-grey colour.

  • Is chromium a metal or nonmetal?

  • Chromium, chemical element of Group 6 (VIb) of the periodic table, a hard steel-gray metal that takes a high polish and is used in alloys to increase strength and corrosion resistance. Chromium is a relatively abundant element in Earth鈥檚 crust. Its name is from the Greek for color, for the colorations of its compounds.

  • What are the principal compounds of chromium?

  • Principal compounds. The most common oxidation states of chromium are +6, +3, and +2. A few stable compounds of the +5, +4, and +1 states, however, are known. In the +6 oxidation state, the most important species formed by chromium are the chromate, CrO 4 2鈭? and dichromate, Cr 2O 7 2鈭? ions.

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