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Chemical Bonding
N/A
31
Science
10th Grade
02/13/2012

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Term
Anions
Definition
Negatively charged ions
Term
Coordinate Number
Definition
The number of ions of opposite charge that surround the ion in a crystal
Term
Ionic Bonds
Definition
The electrostatic attraction that binds oppositely charged ions together.
Term
Formula Unit
Definition
The lowest who-number ratio of ions in an ionic compound
Term
Ionic Bond
Definition
Transfer of e- from a metal to a nonmetal (metal loses e- & the nonmetal gains e- to from stable octet)
Term
Ionic Compounds
Definition
Compunds composed of cations and anions.
Term
Metallic Bond
Definition
The attraction of free-floating valence electrons for positively charged metal ions
Term
Cations
Definition
Positively charged ions
Term
Alloy
Definition
Amixture of two or more elements, at least one of which is a metal
Term
Octet Rule
Definition
In forming compounds, atoms tend to react so as to acquire the stable electron configuration of a noble gas.
Term
Valence electrons
Definition
Electrons in the highest occupied energy level of an elemt's atoms.
Term
Valence Electrons
Definition
The electrons in the highest occupied enegy level of an atom are called?
Term
Octet Rule
Definition
States that atoms in compounds tend to have the electron configuration of a noble gas
Term
Gaining two electrons
Definition
An oxygen atom attains a stable electron configuration by:
Term
Eight
Definition
Atoms and ions with ______ electrons in their highest enrgy levels are ver stable.
Term
Pseudo noble-gas
Definition
Silver form a cation by attaining a ______ electron configuration with 18 outer electrons incluiding d electrons
Term
Metals
Definition
Tend to lose electrons when they react to form compounds
Term
Anion
Definition
Any atom or group of atoms with a negative charge
Term
Polyatomic ion
Definition
A tightly bound group of atoms that behaves as a unit and carries a charge
Term
Hydrogen Bond
Definition
A relatively strong intermolecular attraction in which a hydrogen that is covalently bonded to a very electronegative atom is also weakly bonded to an unshared pair of electrons of another electronegativity atom.
Term
Halide ion
Definition
A negative ion formed when a halogen atom gains an electron
Term
Coordinate covalent bond
Definition
A bond in which one atom contributes both bonding electrons to a covalent bond
Term
Metallic Bonding
Definition
Ocuurs only in metals
Term
Metallic bond
Definition
Valence (reactive) e- promoted (by metals) into high empty orbitals to form positive nuclei and a cloud (or sea) of mobile e-
Term
Covalent Bond
Definition
Sharing of e- between two or more nonmetals to gain stable octet (noble gas structure)
Term
Bond dissociation orbital
Definition
The total energy required to break the bond between two covalently bonded atoms.
Term
Bonding molecular orbital
Definition
A molecular orbital whose energy is lower than that of the atomic orbitals from which is formed
Term
Molecule
Definition
A tightly connected group of two or more atoms of nonmetallic elements that behave as an electrically neutral unit.
Term
Electron dot structure
Definition
A diagram that shows valence electrons as dots
Term
Sigma Bond
Definition
Molecular orbital that lies along the axis connecting two atomic nuclei
Term
Hybridization
Definition
A process in which several atomic orbitals mix to form the same number of equivalent hybrid orbitals.
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