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Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

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S Orbital

A spherically symmetrical atomic orbital, one per energy level.

PseudobinaryIonic Compounds

Compounds that contain more than two elements but are named like binary compounds.

Hund's Rule

All orbitals of a given sublevel must be occupied by single electrons before pairing begins.

Peroxide

A compound containing oxygen in the -1 oxidation state. Metal peroxides contain the peroxide ion, O22

D -Transition elements (metals)

B Group elements except IIB in the periodic table, sometimes called simply transition elements EX. Fe, Ni, Cu, Ti .
For further information see Metals.

Semiconductor

A substance that does not conduct electricity at low temperatures but does so at higher temperatures.

Acetic Acid

CA3COOH, clear, colorless liquid, pungent odor. Boiling point 140C, flash point 54C (closed cup), autoignition temperature 38OC.

Polarization

The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.

Radiation

High energy particles or rays emitted during the nuclear decay processes.

Ionization Constant

Equilibrium constant for the ionization of a weak electrolyte.