The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.
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A rare metallic element found in gadolinite and forming compounds resembling those of yttrium. Symbol: Yb, at. wt.: 173.04, at. no.: 70, sp. gr.: 6.96. Cf."rare-earth element."
D -Transition elements (metals)
B Group elements except IIB in the periodic table, sometimes called simply transition elements EX. Fe, Ni, Cu, Ti .
For further information see Metals.
A nuclear reactor that produces more fissionable nuclear fuel than it consumes.
Transition State Theory
Theory of reaction rates that states that reactants pass through high-energy transition states before forming products.
Placing a thin layer of zinc on a ferrous material to protect the underlying surface from corrosion.
A small patch of photographic film worn on clothing to detect and measure accumulated incident ionizing radiation.
Concentration expressed as number of moles of solute per kilogram of solvent.
Conduction of electrical current by ions through a solution or pure liquid.
Group VIIA elements: F, Cl, Br, I
The mass percent of each element in a compound.
Diagram that shows equilibrium temperature-pressure relationships for different phases of a substance.
Adverse health effects resulting from skin exposure ot a substance.
A catalyst that exists in a different phase (solid, liquid or gas) from the reactants, a contact catalyst.
A method of purifying a bar of metal by passing it through an induction heater, this causes impurties to move along a melted portion. This method applies the fact when a metal crystallizes on cooling, impurities are automatically expelled as they do not form part of the crystal.
An oily, slightly water-soluble liquid, C7H6O2, having an almondlike odor: used chiefly in perfumery and in the synthesis of coumarin.
The study of the energy transfers accompanying physical and chemical processes.
Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.
The percent of a specified compound or element in an impure sample.
Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).
Primary Voltaic Cells
Voltaic cells that cannot be recharged, no further chemical reaction is possible once the reactants are consumed.