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A group of atoms derived from an alkane by the removal of one hydrogen atom.

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Ferromagnetism

The ability of a substance to become permanently magnetized by exposure to an external magnetic field.

Hydrogen-Oxygen Fuel Cell

Fuel cell in which hydrogen is the fuel (reducing agent) and oxygen is the oxidizing agent.

 

Octet Rule

Many representative elements attain at least a share of eight electrons in their valence shells when they form molecular or ionic compounds, there are some limitations.

Degenerate

Of the same energy.

Vapor Pressure

The particle pressure of a vapor at the surface of its parent liquid.

Activity Series

A listing of metals (and hydrogen) in order of decreasing activity.

Electronic Transition

The transfer of an electron from one energy level to another.

Ozone

We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.

Amine Complexes

Complex species that contain ammonia molecules bonded to metal ions.

Atomic Mass Unit (amu)

One twelfth of a mass of an atom of the carbon-12 isotope, a unit used for stating atomic and formula weights, also called dalton.