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Absorption of a K shell (n=1) electron by a proton as it is converted to a neutron.

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Evaporization

Vaporization of a liquid below its boiling point.

Atomic Weight

Weighted average of the masses of the constituent isotopes of an element, The relative masses of atoms of different elements.

Coulomb

Unit of electrical charge.

Why do copper products change color, and what is the name of the process?

Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.

Solubility Product Principle

The solubility product constant expression for a slightly soluble compound is the product of the concentrations of the constituent ions, each raised to the power that corresponds to the number of ions in one formula unit.

Linear Accelerator

A device used for accelerating charged particles along a straight line path.

Calorie

The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.

Reversible Reaction

Reactions that do not go to completion and occur in both the forward and reverse direction.

Supercritical Fluid

A substance at temperature above its critical temperature.

Heterocyclic Amine

Amine in which the nitrogen is part of a ring.