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Chapter 6 Key Words

Across
A positively charged ion.
The group of atomic symbols and subscripts that represent the atoms or ions in a compound.
A negatively charged ion.
A set of eight valence electrons.
A theory that predicts the shape of a molecule by placing the electron pairs on a central atom as far apart as possible to minimize the mutual repulsion of the electrons.
A group of covalently bonded nonmetal atoms that have an overall electrical charge.
The attraction between partially positive H atom and a strongly electronegative atom of N, O, or F.
The separation of positive and negative charges in a polar bond indicated by an arrow drawn from the more positive atom to the more negative atom.
Attractive forces between oppositely charged ends of polar molecules.
A molecule containing bond dipoles that do not cancel.
The relative ability of an element to attract electrons in a bond.
Elements in groups 1A - 7A react with other elements by forming ionic or covalent bonds to produce a stable electron configuration, usually eight electrons in the outer shell.
A sharing of two pairs of electrons by two atoms.
The difference between the number of protons and the number of electrons.
The smallest unit of two or more atoms held together by covalent bonds.
Weak dipole bonding that results from a momentary polarization of nonpolar molecules.
A molecule that has only nonpolar bonds or in which the bond dipoles cancel.
Down
A covalent bond in which the electrons are shared unequally between atoms.
A combination of atoms in which stable electron configurations are attained by sharing electrons.
A covalent bond in which electrons are shared equally between atoms.
A representation of a molecule or ion that shows the valence electrons.
A measure of the unequal sharing of electrons indicated by the difference in electronegativities.
An atom or group of atoms having an electrical charge because of a loss or gain of electrons.