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Chemistry-Chapter 6

For Sam J. Roman

TermDefinition
Alloy Mixture of two ore more metallic elements.
Covalent Bond A chemical bond in which atoms are held together by their mutual attraction for two or more electrons they share.
Covalent Compound A substance such as an element or chemical compound in which atoms are held together by covalent bonds
Dipole A separation of charges that occurs in a chemical bond because of differences in the electronegativities of the bonded atoms
Electron-dot structure a shorthand notation of the shell model of the atom in which valance electrons are shown around an atomic symbol.
electronegativity The ability of an atom to attract a bonding pair of electrons to itself when bonded to another atom.
Ion An atom having a net electrical charge because of either a loss or gain of electrons
Ionic bond A chemical bond in which there an electric force of attraction between two oppositely charged ions
Ionic Compound A chemical compound containing ions
Metallic bond a chemical one in which positively charged metal ions are held together within a fluid of loosely held electrons.
Molecule The fundamental unit of a chemical compound which is a group of atoms held together tightly by covalent bonds
Nonbonding pairs Two paired valence electrons that are not participating in a chemical bond
Nonpolar Said of a chemical bond or molecule that has no dipole. In a non polar bond or molecule, the electrons are distributed evenly
Ore A geologic deposit containing relatively high concentrations of one ore more metal-containing compounds
Polar Said of a chemical bond or molecule that has a dipole. In a polar bond or molecule electrons are congregated to one side. This makes that side slightly negative while the opposite side is slightly more positive
Polyatomic Ion An ironically charged molecule
Substituent An atom or nonbonding pair of electrons surrounding a centrally located atom
Valence Electron the electrons in the outermost shell of an atom
Velence Shell The outermost occupied shell of an atom
Valence Shell electron-pair repulsion A model, that explains molecular geometries in terms of electron pairs striving to be as far apart from one another as possible
Created by: butesch
 

 



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