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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.

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Lone Pair

Pair of electrons residing on one atom and not shared by other atoms, unshared pair.

Continuous Spectrum

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

Freezing Point Depression

The decrease in the freezing point of a solvent caused by the presence of a solute.ing Point

Standard Molar Volume

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

Indicators

For acid-base titrations, organic compounds that exhibit different colors in solutions of different acidities, used to determine the point at which reaction between two solutes is complete.

Mother Nuclide

Nuclide that undergoes nuclear decay.

Leclanche Cell

A common type of dry cell.

Electronic Geometry

The geometric arrangement of orbitals containing the shared and unshared electron pairs surrounding the central atom of a molecule or polyatomic ion.

Heterocyclic Amine

Amine in which the nitrogen is part of a ring.

Covalent Compounds

Compounds containing predominantly covalent bonds.