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A measure of the net energy of stabilization gained by a metal ion's nonbonding d electrons as a result of complex formation.

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Aufbau ('building up') Principle

Describes the order in which electrons fill orbitals in atoms.

Polar Bond

Covalent bond in which there is an unsymmetrical distribution of electron density.

Metallurgy

Refers to the overall processes by which metals are extracted from ores.

Crystal Lattice Energy

Amount of energy that holds a crystal together, the energy change when a mole of solid is formed from its constituent molecules or ions (for ionic compounds) in their gaseous state.

Hydrogen-Oxygen Fuel Cell

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

 

PseudobinaryIonic Compounds

Compounds that contain more than two elements but are named like binary compounds.

Standard Molar Volume

The volume occupied by one mole of an ideal gas under standard conditions, 22.4liters.

Continuous Spectrum

Spectrum that contains all wave-lengths in a specified region of the electromagnetic spectrum.

Curie (Ci)

The basic unit used to describe the intensity of radioactivity in a sample of material. One curie equals 37 billion disintegrations per second or approximately the amount of radioactivty given off by 1 gram of radium.

Emission Spectrum

Spectrum associated with emission of electromagnetic radiation by atoms (or other species) resulting from electronic transitions from higher to lower energy states.