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The mass of one molecule of a nonionic substance in atomic mass units.

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Film badge

A small patch of photographic film worn on clothing to detect and measure accumulated incident ionizing radiation.

Electrolytic Conduction

Conduction of electrical current by ions through a solution or pure liquid.

Metallurgy

Refers to the overall processes by which metals are extracted from ores.

Atomic Radius

Radius of an atom.

Salt and its use in everyday life

Cooking salt is a product that is available in every kitchen, and it’s not as simple as it seems. The history of this product shows that it was valued like gold.

Weak Electrolyte

A substance that conducts electricity poorly in a dilute aqueous solution.

Critical Point

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

Strong Electrolyte

A substance that conducts electricity well in a dilute aqueous solution.

 

Metathesis Reactions

Reactions in which two compounds react to form two new compounds, with no changes in oxidation number. Reactions in which the ions of two compounds exchange partners.

 

Background Radiation

Ratiation extraneous to an experiment. Usually the low-level natural radiation form cosmic rays and trace radioactive substances present in our environment.