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  2. Bromine - Wikipedia

    en.wikipedia.org/wiki/Bromine

    However, bromine is beneficial for human eosinophils, [10] and is an essential trace element for collagen development in all animals. [11] Hundreds of known organobromine compounds are generated by terrestrial and marine plants and animals, and some serve important biological roles. [ 12 ]

  3. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    Bromine compounds are very common in and presumably essential to a variety of marine organisms, including bacteria, fungi, seaweeds, and diatoms. [25] [26] Most marine organobromine compounds are made by the action of a unique algal enzyme, vanadium bromoperoxidase [27] Toxic in excessive concentrations, causing the human disease bromism ...

  4. Composition of the human body - Wikipedia

    en.wikipedia.org/wiki/Composition_of_the_human_body

    Parts-per-million cube of relative abundance by mass of elements in an average adult human body down to 1 ppm. About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium ...

  5. Group 8 element - Wikipedia

    en.wikipedia.org/wiki/Group_8_element

    Iron is a part of some hormones as well. A lack of iron in the body can cause iron deficiency anemia, and an excess of iron in the body can be toxic. [7] Some ruthenium-containing molecules may be used to fight cancer. [8] Normally, however, ruthenium plays no role in the human body. [3] Both osmium and hassium have no known biological roles ...

  6. Bromide - Wikipedia

    en.wikipedia.org/wiki/Bromide

    Bromide salts are used in hot tubs as mild germicidal agents to generate in situ hypobromite. The bromide ion is antiepileptic and as bromide salt, is used in veterinary medicine in the US. The kidneys excrete bromide ions. The half-life of bromide in the human body (12 days) is long compared with many pharmaceuticals, making dosing challenging ...

  7. Biochemistry - Wikipedia

    en.wikipedia.org/wiki/Biochemistry

    Just six elements—carbon, hydrogen, nitrogen, oxygen, calcium and phosphorus—make up almost 99% of the mass of living cells, including those in the human body (see composition of the human body for a complete list). In addition to the six major elements that compose most of the human body, humans require smaller amounts of possibly 18 more ...

  8. Bromism - Wikipedia

    en.wikipedia.org/wiki/Bromism

    Bromism is the syndrome which results from the long-term consumption of bromine, usually through bromine-based sedatives such as potassium bromide and lithium bromide. Bromism was once a very common disorder, being responsible for 5 to 10% of psychiatric hospital admissions, but is now uncommon since bromide was withdrawn from clinical use in ...

  9. Nonmetal - Wikipedia

    en.wikipedia.org/wiki/Nonmetal

    liquids (mercury, bromine) are either metallic or nonmetallic: mercury, as a good conductor, is a metal; bromine, with its poor conductivity, is a nonmetal; solids are either ductile and malleable, hard and brittle, or soft and crumbly: a. ductile and malleable elements are metals;