metal chelates have a
1Chelates in animal nutrition — Zinc sample Poultry and his nutrition …
2Chelation — Metal EDTA chelate Chelation is the formation or presence of two or more separate coordinate bonds between a polydentate (multiple bonded) ligand and a single central atom.[1] Usually these ligands are organic compounds, and are calle …
3coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… …
4Alexander Catsch — (Katsch) (1913 ndash; 1976 in Karlsruhe) was a German Russian medical doctor and radiation biologist. Up to the end of World War II, he worked in Nikolaj Vladimirovich Timefeev Resovskij’s Abteilung für Experimentelle Genetik at the Kaiser… …
5Francis Patrick Dwyer — Francis Patrick John Frank Dwyer (3 December 1910 – 22 June 1962) was Professor of Chemistry, Australian National University, Canberra. He was one of the most distinguished scientists Australia has produced. At the time of his death in 1962 he… …
6Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also …
7art conservation and restoration — Maintenance and preservation of works of art, their protection from future damage, deterioration, or neglect, and the repair or renovation of works that have deteriorated or been damaged. Research in art history has relied heavily on 20th and… …
8Amino acid — This article is about the class of chemicals. For the structures and properties of the standard proteinogenic amino acids, see Proteinogenic amino acid. The generic structure of an alpha amino acid in its unionized form …
9rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
10Magnesium in biology — Magnesium is an essential element in biological systems. Magnesium occurs typically as the Mg2+ ion. It is an essential mineral nutrient for life[1][2][3] and is present in every cell type in every organism. For example, ATP (adenosine… …
