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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.

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Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Ion

An atom or a group of atoms that carries an electric charge.

Mother Nuclide

Nuclide that undergoes nuclear decay.

Levorotatory

Refers to an optically active substance that rotates the plane of plane polarized light counterclockwise, also called levo.

Acetic Acid

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

Cis-

The prefix used to indicate that groups are located on the same side of a bon about which rotation is restricted.

Neutron

A neutral subatomic particle having a mass of 1.0087 amu.

Deuterium

An isotope of hydrogen whose atoms are twice as massive as ordinary hydrogen,deuterion atoms contain both a proton and a neutron in the nucleus.

Faraday

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

Ion Product for Water

Equilibrium constant for the ionization of water, Kw = [H3O+][OH-] =1.00 x 10-14 at 25 °C.