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Crystal field designation for an inner orbital complex, contains electrons paired t2g orbitals before eg orbitals are occupied in octahedral complexes.

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High Spin Complex

Crystal field designation for an outer orbital complex, all t2g and eg orbitals are singly occupied before any pairing occurs.

Half-Life

The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.

Flammable

A liquid as defined by NFPD and DOT as having a flash point below 37.8°C (100°F).

Law of Conservation of Matter

There is no detectable change in the quantity of matter during an ordinary chemical reaction.

Aryl Group

Group of atoms remaining after a hydrogen atom is removed from the aromatic system.

Alpha Particles

A helium nucleus.

Catenation

Bonding of atoms of the same element into chains or rings.
The bonding together of atoms of the same element to form chains.
The ability of an element to bond to itself.

Chemical Periodicity

The variations in properties of elements with their position in the periodic table.

Hydrogen-Oxygen Fuel Cell

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

 

Faraday

One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.