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Nuclide that undergoes nuclear decay.

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Salinometer

An instrument for measuring the amount of salt in a solution. Also,"salimeter, salometer."

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Dimer

Molecule formed by combination of two smaller (identical) molecules.

Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

Ether

Compound in which an oxygen atom is bonded to two alkyl or two aryl groups, or one alkyl and one aryl group.

Particulate Matter

Fine divided solid particles suspended in polluted air.

Haber Process

A process for the catalyzed industrial production of ammonia from N2 and H2 at high temperature and pressure.

Autoionization

An ionization reaction between identical molecules.

Shielding Effect

Electrons in filled sets of s , p orbitals between the nucleus and outer shell electrons shield the outer shell electrons somewhat from the effect of protons in the nucleus, also called screening effect.

Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.