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Elements with properties intermediate between metals and nonmetals: B, Al, Si, Ge, As, Sb, Te, Po, and At.

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Linkage Isomers

Isomers in which a particular ligand bonds to a metal ion through different donor atoms.

 

Electronegativity

A measure of the relative tendency of an atom to attract electrons to itself when chemically combined with another atom.

Lewis Base

Any species that can make available a share in an electron pair.

Critical Point

The combination of critical temperature and critical pressure of a substance.

Diamagnetism

Weak repulsion by a magnetic field.

Electron Configuration

Specific distribution of electrons in atomic orbitals of atoms or ions.

Wild patina, is it so bad?

Usually this kind of patina appears on monuments. The most striking example is the Statue of Liberty in New York.

Standard Electrode Potential

By convention, potential, Eo, of a half-reaction as a reduction relative to the standard hydrogen electrode when all species are present at unit activity.

 

Nickel-cadmium cell (Nicad battery)

A dry cell in which the anode is Cd, the cathode is NiO2, and the electrolyte is basic.

Canal Ray

Stream of positively charged particles (cations) that moves toward the negative electrode in cathode ray tubes, observed to pass through canals in the negative electrode.