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RSM Chp. Five

valence electron are those lectrons that have the highest energy level and held most lossely
electron dot diagrams includes the symbol for the element surrounded by dots. Each dot stands for one valence electron
chemical bond is the force of attraction that holds two atoms together as a result of the rearrangement of electrons between them
ion is an atom or group of atoms that has an electric charge
polyatomic ion ions that are made of more than one atom and react as a unit
ionic bond is an attraction between two oppositely charged ions
ionic compound a compound that consists of postive and negative ions
chemical formula is a combination of symbols that shows the ratio of elements in a compound
subscript tells you the ratio of elements in the compound.
crystal ions form an orderly three dimensional arrangement by repeating patterns of ions
covalent bond the chemical bond when two atoms SHARE electrons
molecule a neutral particle made of two or more atoms joined by covalent bonds
double bond the two atoms share two pairs of electrons
triple bond in which their atoms share three pairs of electrons
molecular compound is a compound that is composed of molecules that are covalently bonded
polar bond a covalent bond in which electrons are shared unequally
non polar bond if two atoms pull equally on the electrons neither atom become charged
alloy is a mixture made of two or more elements, at least one of which is a metal. Stronger and less reactive than pure metals
metallic bond an attraction between a positive metal ion and the many electrons surrounding it...the positive charged metal ion are embedded in a sea of valence electrons
Created by: gayledains