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Quantum mechanical solution to a wave equation that designates the particular orbital within a given set (s, p, d, f ) in which a electron resides.

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Hydrogenation

The reaction in which hydrogen adds across a double or triple bond.

Noble Gases (Rare Gases)

Elements of the periodic Group 0, also called rare gases, formerly called inert gases, He,Ne,Ar, Kr, Xe, Rn.

Supercooled Liquids

Liquids that, when cooled, apparently solidify but actually continue to flow very slowly under the influence of gravity e.g glass.

Spectrum

Display of component wavelengths (colours) of electromagnetic radiation.

Hydrogen-Oxygen Fuel Cell

Fuel cell in which hydrogen is the fuel (reducing agent) and oxygen is the oxidizing agent.

 

Mass Number

The sum of the numbers of protons and neutrons in an atom, an integer.

Second Law of Thermodynamics

The universe tends toward a state of greater diorder in spontaneous processes.

High Spin Complex

Crystal field designation for an outer orbital complex, all t2g and eg orbitals are singly occupied before any pairing occurs.

Integrated Rate Equation

An equation giving the concentration of a reactant remaining after a specified time, has different mathematical form for different orders of reactants.

Percent by Mass

100% times the actual yield divided by theoretical yield.