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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