Tags & Description
Iron
________ plays a central role in almost all living cells.
chromium configuration
The ________ occurs because the energies of the 3d and 4d orbitals are very similar for the first- row transition elements.
Geometric isomerism
________: Ligands assume different relative positions in the coordination sphere; examples are cis and trans isomers.
Steel
________ is manufactured by oxidizing the impurities in pig iron.
Transition metal ions
________ characteristically form coordination compounds, which are usually colored and often paramagnetic.
VSEPR
The ________ model for predicting structure generally does not work for complexions.
Impure product
________ (90 % iron) is called pig iron.
Oxidation
________ is carried out in various ways, but the two most common are the open- hearth process and the basic oxygen process.
Optical isomerism
________: Molecules with non- superimposable mirror images rotate plane- polarized light in opposite directions.
Stereoisomerism
________: Isomers have identical bonds but different spatial arrangements.
Silver
________ is the best conductor of heat and electric current.
metal ion
The interaction between a(n) ________ and a ligand can be viewed as a Lewis acid- base reaction with the ligand donating a lone pair of electrons to an empty orbital of the ________ to form a coordinate covalent bond.
Niobium
________ and molybdenum are important alloying materials for certain types of steel.
Isomers
________: Two or more compounds with the same formula but different properties.
large molecule
A protein is a(n) ________ assembled from amino acids, which have the general structure in which R represents various groups.
high resistance
Tantalum, which has a(n) ________ to attack by body fluids, is often used for the replacement of bones.
ores
The minerals in ________ are often converted to oxides (roasting) before being reduced to metal (smelting)
Coordination compounds
________ have been known since about 1700, but their true nature was not understood until the 1890s when a young Swiss chemist named Alfred Werner proposed that transition metal ions have two types of valence.
Cyanide
________ coordinates strongly to cytochrome oxidase, an aniron- containing cytochrome enzyme that catalyzes the oxidation- reduction reactions of certain cytochrome.
ligand
A(n) ________ that can form one bond to a metal ion is called a monodentate ________.
Hemoglobin
________ dramatically demonstrates how sensitive the function of a biomolecule is to its structure.
crystal field model
The ________ focuses on the energies of the d orbitals.
transition metals
The ________ behave as typical metals, possessing metallic luster and relatively high electrical and thermal conductivities.
linear complexes
The crystal field model also applies to square planar and ________.
principal source of energy
In mammals, the ________ comes from the oxidation of carbohydrates, proteins, and fats.
metal ion
Some ligands have more than one atom with a lone electron pair that can be used to bond to a(n) ________ 21.4 Isomerism.
transition metal ion
The cations are often complexions, species where the ________ is surrounded by a certain number of ligands.
Ligand
________: a neutral molecule or ion having a lone electron pair that can be used to form a bond to a metal ion.
Coordination Compounds
About 90 % of the zinc produced is used for galvanizing steel 21.3 ________.
transition metal ions
In ________, the 3d orbitals are lower in energy than the 4s orbitals.
metal ion
For example, ________ complexes are used in humans for the transport and storage of oxygen, as electron- transfer agents, as catalysts, and as drugs.
Coordination compound
________: A transition metal ion with its attached ligands.
transition metal ion
Chelating ligands form more than one bond to the ________.