Chromium is a metallic element that forms compounds with other elements. Its spelling can be a bit tricky as it contains consonant clusters and silent letters. The word is spelled as /ˈkroʊmiəm/ in IPA phonetic transcription. The first syllable, "chrom-", is pronounced with a long "o" sound followed by the "r" and "o" sounds. The second syllable, "-ium", is pronounced with a short "i" sound followed by the "um" sound. Learning the correct spelling and pronunciation of this word is crucial for discussions related to materials science and chemistry.
Chromium is a chemical element represented by the symbol Cr and the atomic number 24. It is a hard, lustrous, steel-gray metal that belongs to the transition metals group on the periodic table. Chromium is commonly found in nature in the form of chromite ore, which is primarily composed of iron chromate, FeCr2O4. It is known for its exceptional resistance to corrosion, making it a crucial element in the production of stainless steel and various other alloys.
In addition to its role in metallurgy, chromium has significant applications in various industries. It is widely used as a decorative material due to its reflective properties and resistance to tarnish. Chromium compounds are employed as pigments in the production of dyes, inks, and paints, providing vivid and stable colors. Furthermore, it is an essential trace element required by the human body, playing a role in glucose metabolism, immune function, and the synthesis of proteins and nucleic acids.
However, exposure to excessive amounts of chromium compounds, particularly hexavalent chromium, can be hazardous to human health. Hexavalent chromium is a known carcinogen and can cause skin irritation, respiratory issues, and other health problems. As a result, regulations and safety measures are in place to prevent excessive exposure and ensure the safe handling and disposal of chromium-containing materials.
A metallic element, symbol Cr, atomic weight, 52, very hard, steel gray in color.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
One of the metals, so named from its property of imparting colour to others in a remarkable degree.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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The word "chromium" comes from the Greek word "chrōma" which means "color". It is derived from the fact that chromium compounds are capable of producing vivid colors in various compounds and pigments.