Iodine is lustrous or not

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Alloy of sodium with mercury. Match the following columns. Generally, non-metals are not lustrous. Which of the following non-metals is lustrous? Name a non-metal which is lustrous and a metal which is non-lustrous. Iodine is a lustrous metal.

Iodine is lustrous or not

Generally, non-metals are not lustrous. Which of the following non metal is lustrous? Shining metals are called lustrous. Sulphur, oxygen, nitrogen are non-lustrous. Iodine is a non-metal having lustrous appearance. It has a shining surface like that of metals. Dont't have an account? Register Now. Colleges Colleges Accepting B. Quick links BTech M. Computer Application and IT Change. Pharmacy Change.

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Its composition depends on region and country. Name a non - metal which is good conductor of electricity. Solution: Explanation: Non-metals are a bad conductor of electricity i. Final Answer: Thus, graphite is a non - metal which is good conductor of electricity. A: Many useful substances are obtained from petroleum and natural gas. These are termed as 'petrochemicals'. C: Due to the great commercial importance of petroleum, it is also called 'black gold'.

Iodine is an essential element needed for life. It is best known for the vital role it plays in thyroid hormone production in humans as well as in all vertebrates. Iodine deficiency can lead to serious health problems, including goiter enlarged thyroid gland , intellectual disability and cretinism. As a pure element, iodine is a lustrous purple-black nonmetal that is solid under standard conditions. It sublimes changes from a solid to a gaseous state while bypassing a liquid form easily and gives off a purple vapor. Although it is technically a non-metal, it exhibits some metallic qualities. Iodine is classified as a halogen — a subset of very chemically reactive elements Group 17 on the periodic table that exist in the environment as compounds rather than as pure elements. The other halogens include fluorine F , chlorine Cl , bromine Br and astatine At. The term halogen means "salt-producing. Iodine is the least reactive of the halogens as well as the most electropositive, meaning it tends to lose electrons and form positive ions during chemical reactions.

Iodine is lustrous or not

Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. It is even less abundant than the so-called rare earths. It is the heaviest essential mineral nutrient.

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India Post. CAT Exam. Silver iodide is a major ingredient to traditional photographic film. FCI Manager. South Indian Bank Clerk. Weinheim: Wiley-VCH. Punjab Civil Service. It also occurs from open-air nuclear testing, and is not hazardous because of its very long half-life, the longest of all fission products. Non-metals combine with oxygen to form basic oxides. Exam Info. Gujarat High Court Peon. SSB Head Constable. Allahabad High Court Computer Assistant.

Wiki User. The appearance of iodine crystals: lustrous, metallic, gray. Thus, metals can be lustrous and non-metals cannot be lustrous in nature except iodine, which is a non-metal, but is lustrous in nature.

Write your answer Maharashtra Zilla Parishad JE. Bihar Police Fireman. Archived from the original on 13 August Other syntheses include high-temperature oxidative iodination of the element with iodine or hydrogen iodide, high-temperature iodination of a metal oxide or other halide by iodine, a volatile metal halide, carbon tetraiodide , or an organic iodide. GATE Mathematics. Odisha Junior Teacher. CWC Assistant Engineer. FCI Stenographer. Haryana SET. Iodine is violet when dissolved in carbon tetrachloride and saturated hydrocarbons but deep brown in alcohols and amines , solvents that form charge-transfer adducts. Odisha Livestock Inspector. Indian Navy Chargeman. DMRC Maintainer. Your Answer.