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Bonding within metals due to the electrical attraction of positively charges metal ions for mobile electrons that belong to the crystal as a whole.

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Stoichiometry

Description of the quantitative relationships among elements and compounds as they undergo chemical changes.

Ionization Energy

The minimum amount of energy required to remove the most loosely held electron of an isolated gaseous atom or ion.

Biodegradability

The ability of a substance to be broken down into simpler substances by bacteria.

 

Mole Fraction

The number of moles of a component of a mixture divided by the total number of moles in the mixture.

 

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Chemical Equation

Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.

Molecular Orbital Theory

A theory of chemical bonding based upon the postulated existence of molecular orbitals.

Pairing Energy

Energy required to pair two electrons in the same orbital.

Binding Energy (nuclear binding energy)

The energy equivalent (E = mc^2) of the mass deficiency of an atom.  where: E = is the energy in joules, m is the mass in kilograms, and c is the speed of light in m/s^2

xanthene dye

Any of a group of dyes having a molecular structure related to that of xanthene in which the aromatic (C6H4) groups are the chromophore.